Online Etymology Dictionary

Mnemosyne: titaness, mother of the Muses, from Greek mnemosyne, literally "memory, remembrance," from mneme "memory" (see mnemonic).
Mekong: river in Southeast Asia, Thai, from me "mother" + khong "river, large stream."
patroclinous (adj.): "resembling the father rather than the mother," 1913, from patri- + Greek klinein "to lean" (see lean (v.)).
half-caste (adj.): 1789, Anglo-Indian, in reference to the offspring of a European father and an Asian mother, from half + caste.
Leda: in Greek mythology, wife of Tyndareus, a king of Sparta; she was mother of Clytaemnestra, Helen, Castor, and Pollux.
nacre (n.): 1590s, "type of shellfish that yields mother-of-pearl," from Middle French nacre (14c.), from Italian naccaro (now nacchera), possibly from Arabic naqur "hunting horn" (from nakara "to hollow out"), in reference to the shape of the mollusk shell. Meaning "mother-of-pearl" is from 1718.
mum (n.2): pet word for "mother," 1823, short for mummy (see mamma). In British sociology, used from 1957 in reference to "the working class mother as an influence in the lives of her children." Also sometimes a vulgar corruption of madam.
Semele: daughter of Cadmus and mother of Dionysus, from Latin, from Greek Semele, a Thraco-Phrygian earth goddess, from Phrygian Zemele "mother of the earth," probably cognate with Old Church Slavonic zemlja "earth," Latin humus "earth, ground, soil" (see chthonic).
Hannah: fem. proper name, biblical mother of the prophet Samuel, from Hebrew, literally "graciousness," from stem of hanan "he was gracious, showed favor."
Stabat Mater: Latin Stabat Mater dolorosa "Stood the Mother (of Jesus) full of sorrow," opening words of a sequence composed 13c. by Jacobus de Benedictis.
Thetis: name of a sea goddess in Greek mythology, mother of Achilles by Peleus. Since Roman times, sometimes, in poetry, "the sea personified."
Tuatha de Danann: 1680s, from Irish Tuatha dé Danann, literally "the people of Danann," from plural of tuath (see Teutonic) + Danann, apparently originally an oblique case of Danu, mother of the gods.
amah (n.): "wet-nurse," 1839, Anglo-Indian, from Portuguese ama "nurse," from Medieval Latin amma "mother," from PIE root *am-, forming nursery words.
Cassiopeia (n.): northern constellation, in Greek mythology queen of Ethiopia and mother of Andromeda, from Latinized form of Greek Kassiepeia, Kassiopeia, of unknown etymology. Related: Cassiopeian.
sultana (n.): wife, mother, daughter, or concubine of a sultan, 1580s, from Italian sultana, fem. of sultano (see sultan). Middle English had soudanesse "sultaness" (late 14c.).
Leto: in Greek mythology, mother of Apollo and Artemis by Zeus. She gave birth to them on the island of Delos. Roman Latona.
dura mater (n.): "tough outer membrane surrounding the brain," c. 1400, from Medieval Latin dura mater cerebri, literally "hard mother of the brain," a loan-translation of Arabic umm al-dimagh as-safiqa, literally "thick mother of the brain." "In Arabic, the words 'father,' 'mother,' and 'son' are often used to denote relationships between things" [Klein].
Naomi: fem. proper name, biblical mother-in-law of Ruth, from Hebrew Na'omi, literally "my delight," from no'am "pleasantness, delightfulness," from stem of na'em "was pleasant, was lovely."
Pasiphae: wife of Minos, mother of Phaedra and Ariadne, from Latin, from Greek Pasiphae, from pasiphaes "shining for all," from pasi "for all," dative plural of pas, pan "all" (see pan-) + phaos "light" (see fantasy).
rhea (n.): South American ostrich, 1801, Modern Latin genus name, for unknown reasons from Greek Rhea, name of a titaness, mother of Zeus, a name of unknown origin. As a moon of Saturn, discovered 1672.
midwife (n.): c. 1300, "woman assisting," literally "woman who is 'with' " (the mother at birth), from Middle English mid "with" (see mid) + wif "woman" (see wife). Cognate with German Beifrau.
sever (v.): c. 1300, from Anglo-French severer, Old French sevrer "to separate" (12c., later in French restricted to "to wean," i.e. "to separare from the mother"), from Vulgar Latin *seperare, from Latin separare "to separate" (see separate (v.)).
brooding (adj.): 1640s, "hovering, overhanging" (as a mother bird does her nest), from present participle of brood (v.); meaning "that dwells moodily" first attested 1818 (in "Frankenstein").
Electra: also called Laodice, a daughter of Agamemnon and Clytaemnestra, the accomplice of her brother Orestes in the murder of their mother, from Greek Elektra, literally "shining, bright," related to elektor "the beaming sun" and perhaps to elektron "amber." Especially in psychological Electra complex (1913, Jung) in reference to a daughter who feels attraction toward her father and hostility to her mother. Also the name of a daughter of Atlas, and as such a name of one of the Pleiades.
nun (n.): Old English nunne "nun, vestal, pagan priestess, woman devoted to religious life under vows," from Late Latin nonna "nun, tutor," originally (along with masc. nonnus) a term of address to elderly persons, perhaps from children's speech, reminiscent of nana (compare Sanskrit nona, Persian nana "mother," Greek nanna "aunt," Serbo-Croatian nena "mother," Italian nonna, Welsh nain "grandmother;" see nanny).
nurse (n.1): 12c., nurrice "wet-nurse, foster-mother to a young child" (modern form from late 14c.), from Old French norrice "foster-mother, wet-nurse, nanny" (source of proper name Norris), from Late Latin *nutricia "nurse, governess, tutoress," noun use of fem. of Latin nutricius "that suckles, nourishes," from nutrix (genitive nutricis) "wet-nurse," from nutrire "to suckle" (see nourish). Meaning "person who takes care of sick" in English first recorded 1580s.
mamma (n.): 1570s, representing the native form of the reduplication of *ma- that is nearly universal among the Indo-European languages (Greek mamme "mother, grandmother," Latin mamma, Persian mama, Russian and Lithuanian mama "mother," German Muhme "mother's sister," French maman, Welsh mam "mother"). Probably a natural sound in baby-talk, perhaps imitative of sound made while sucking.

Its late appearance in English is curious, but Middle English had mome (mid-13c.) "an aunt; an old woman," also an affectionate term of address for an older woman. In educated usage, the stress is always on the last syllable. In terms of recorded usage of related words in English, mama is from 1707, mum is from 1823, mummy in this sense from 1839, mommy 1844, momma 1852, and mom 1867.
Callisto: fourth moon of Jupiter; in classical mythology a nymph, mother of Arcas by Zeus, turned to a bear by Hera, from Greek kallistos, superlative of kalos "beautiful, beauteous," from PIE *kal-wo-, suffixed form of root *kal- (2) "beautiful." Feminized as proper name Callista.
Kali: a name of Devi, the Hindu mother-goddess, in her black-skinned death-aspect, 1798, from Sanskrit kali, literally "the black one," fem. of kalah "blue-black, black," a word from a Dravidian language. Also taken as the fem. of kala "time" (as destroyer).
maternity (n.): 1610s, "quality or condition of being a mother," from French maternité "motherhood" (15c.), from Medieval Latin maternitatem (nominative maternitas) "motherhood," from Latin maternus (see maternal). Used from 1893 as a quasi-adjective in reference to garments designed for pregnant women.
Amy: fem. proper name, from Old French Amee, literally "beloved," from fem. past participle of amer "to love," from Latin amare, perhaps from PIE *am-a-, suffixed form of root *am-, a Latin and Celtic root forming various nursery words for "mother, aunt," etc. (such as Latin amita "aunt").
chutzpah (n.): also hutzpah, 1892, from Yiddish khutspe "impudence, gall." from Hebrew hutspah. The classic definition is that given by Leo Rosten: "that quality enshrined in a man who, having killed his mother and father, throws himself on the mercy of the court because he is an orphan."
Antigone: daughter of Oedipus, her name may mean "in place of a mother" in Greek, from anti- "opposite, in place of" (see anti-) + gone "womb, childbirth, generation," from root of gignesthai "to be born" related to genos "race, birth, descent" (see genus).
Sarah: fem. proper name, Biblical wife of Abraham and mother of Isaac, from Hebrew, literally "princess," from sarah, fem. of sar "prince," from sarar "he ruled," related to Akkad. sharratu "queen." Popular as a name for girls born in U.S. in 1870s and 1978-2000.
schm-: substituted for the initial sound of a word and reduplicated with it to convey derision (as in "Oedipus schmoedipus" in the punchline of the old joke about the Jewish mother and the psychiatrist), 1929, from the numerous Yiddish words that begin with this sound.
birthmark (n.): also birth-mark, by 1805, from birth (n.) + mark (n.1). Birth marks in 17c. could be longing marks; supposedly they showed the image of something longed for by the mother while expecting. Related: Birthmarked.
pat (v.): 1560s, "to hit, throw;" meaning "to tap or strike lightly" is from 1714; from pat (n.). Related: Patted; patting. The nursery rhyme phrase pat-a-cake is known from 1823. Alternative patty-cake (usually American English) is attested from 1794 (in "Mother Goose's Melody, or Sonnets for the Cradle," Worcester, Mass.).
aunt (n.): c. 1300, from Anglo-French aunte, Old French ante (Modern French tante, from a 13c. variant), from Latin amita "paternal aunt" diminutive of *amma a baby-talk word for "mother" (source also of Greek amma "mother," Old Norse amma "grandmother," Middle Irish ammait "old hag," Hebrew em, Arabic umm "mother").

Extended senses include "an old woman, a gossip" (1580s); "a procuress" (1670s); and "any benevolent woman," in American English, where auntie was recorded since c. 1790 as "a term often used in accosting elderly women." The French word also has become the word for "aunt" in Dutch, German (Tante), and Danish. Swedish has retained the original Germanic (and Indo-European) custom of distinguishing aunts by separate terms derived from "father's sister" (faster) and "mother's sister" (moster). The Old English equivalents were faðu and modrige. In Latin, too, the formal word for "aunt on mother's side" was matertera. Some languages have a separate term for aunts-in-law as opposed to blood relations.
Gaia (n.): Earth as a goddess, from Greek Gaia, spouse of Uranus, mother of the Titans, personification of gaia "earth" (as opposed to heaven), "land" (as opposed to sea), "a land, country, soil;" it is a collateral form of ge (Dorian ga) "earth," which is of unknown origin and perhaps from a pre-Indo-European language of Greece. The Roman equivalent goddess of the earth was Tellus (see tellurian), sometimes used in English poetically or rhetorically for "Earth personified" or "the Earth as a planet."
nanny (n.): "children's nurse," 1795, from widespread child's word for "female adult other than mother" (compare Greek nanna "aunt"). The word also is a nickname form of the fem. proper name Ann, which probably is the sense in nanny goat (1788, compare billy goat). Nanny-house "brothel" is slang from c. 1700. Nanny state, in reference to overintrusive government policies is attested by 1987, the term associated with British political leader Margaret Thatcher, who criticized the tendency.
Oedipal (adj.): 1939, "of or pertaining to desire felt for opposite-sex parent," from Oedipus complex (1910), coined by Freud from Sophocles' play "Oedipus Tyrannus," in which the title character, the Theban hero, answers the Sphinx's riddle and unknowingly kills his father and marries his own mother; from Greek Oedipus. The name was used figuratively in English from 1550s for "one who is clever at guessing riddles," which had adjectival form Oedipean (1620s).
Joseph: masc. proper name, biblical son of Jacob and Rachel, and in the New Testament the name of the husband of Mary, mother of Jesus; from Late Latin Joseph, Josephus, from Greek Ioseph, from Hebrew Yoseph (also Yehoseph; see Ps. lxxxi:6) "adds, increases," causative of yasaph "he added." Its use in names of clothing and plants often is in reference to his "coat of many colors" (Gen. xxxvii:3).
parent (n.): early 15c. (late 12c. as a surname), from Old French parent "father, parent, relative, kin" (11c.), from Latin parentem (nominative parens) "father or mother, ancestor," noun use of present participle of parere "bring forth, give birth to, produce," from PIE root *pere- (1) "to bring forth" (see pare). Began to replace native elder after c. 1500.
Rebecca: fem. proper name, biblical wife of Isaac, mother of Jacob and Esau, from Late Latin Rebecca, from Greek Rhebekka, from Hebrew Ribhqeh, literally "connection" (compare ribhqah "team"), from Semitic base r-b-q "to tie, couple, join" (compare Arabic rabaqa "he tied fast"). Rebekah, the form of the name in Authorized Version, was taken as the name of a society of women (founded 1851 in Indiana, U.S.) as a complement to the Odd Fellows.
beldam (n.): "aged woman," 1570s; earlier "grandmother" (mid-15c.), from dame (q.v.) in the sense of "mother" + bel-, Middle English prefix expressing relationship (as in belfader, belsire "grandfather"), from Old French bel, belle "beautiful, fair, fine" (see belle). This "direct relationship" sense of bel is not found in French, where the prefix is used to form words for in-laws.
agave (n.): American aloe plant, 1797, from Latin Agave, from Greek Agaue, proper name in mythology (mother of Pentheus), from agauos "noble," perhaps from agasthai "wonder at," from gaiein "to rejoice, exult," with intensive prefix a-. The name seems to have been taken generically by botanists, the plant perhaps so called for its "stately" flower stem.
alien (adj.): mid-14c., "strange, foreign," from Old French alien "alien, strange, foreign; an alien, stranger, foreigner," from Latin alienus "of or belonging to another, foreign, alien, strange," also, as a noun, "a stranger, foreigner," adjectival form of alius "(an)other" (see alias (adv.)). Meaning "not of the Earth" first recorded 1920. An alien priory (c. 1500) is one owing obedience to a mother abbey in a foreign country.
Everest (n.): mountain between Nepal and Tibet, named 1865 for Sir George Everest (1790-1866), surveyor-general of India. The Tibetan name is Chomolangma "mother goddess of the world." Everest's surname is said in name-books to be a variant of Devereux, a Norman name, from Evereux/Evreux in France, which from a Celtic tribal name (Latin Eburovices) based on the Ebura (modern Eure) river.
Ishmael: masc. proper name, biblical son of Abraham and Hagar, driven into the wilderness with his mother, from Hebrew Yishma'el, literally "God hears," from yishma, imperf. of shama "he heard." The Arabs claim descent from him. Figurative sense of "an outcast," "whose hand is against every man, and every man's hand against him" is from Gen. xvi:12. Related: Ishmaelite.
Minerva: ancient Roman goddess of arts, crafts, and sciences; wisdom, sense, and reflection (later identified with Greek Athene), late 14c., mynerfe, from Latin Minerva, from Old Latin Menerva, from *menes-wa, from PIE root *men- "mind, understanding, reason" (see mind (n.)). Compare Sanskrit Manasvini, name of the mother of the Moon, manasvin "full of mind or sense." Related: Minerval.