late 15c., pacifien, "appease, allay the anger of (someone)," from Old French pacifier, paciifier,  "make peace," from Latin pacificare "to make peace; pacify," from pacificus "peaceful, peace-making," from pax (genitive pacis) "peace" (see peace). Of countries or regions, "to bring to a condition of calm, to restore peace to," late 15c., from the start with suggestions of forced submission and terrorization. Related: Pacified; pacifying.

early 13c., pak, pake, "a bundle or package (of cloth, merchandise, etc.)," also "a bag or purse for carrying things," probably from a Low German word (compare Middle Dutch pac, pack "bundle," Middle Low German pak, Middle Flemish pac, attested from late 12c.) and taken into English from the wool traders in Flanders; or possibly from Old Norse pakki. All are of unknown origin. Italian pacco is a Dutch loan word; French pacque probably is from Flemish.

Especially a bundle enclosed in a wrapping and bound fast with cords. Meaning "set of persons" (usually of a low character) is from late 14c. and is older than sense of "group of instinctively herding hunting animals" (mid-15c.). Extended to "complete set of playing cards" (1590s), floating ice (1791), bundled cigarettes (1865), and submarines (1943).

Meaning "knapsack on a frame" is attested from 1916. Pack of lies is attested from 1763. Meaning "a person of low character" (usually with naughty) is by 1520s.

late 14c., pakken, "to put together in a pack, bundle (something) up," from pack (n.), possibly influenced by Anglo-French empaker (late 13c.) and Medieval Latin paccare "pack," both of which are from Germanic (compare Middle Dutch packen).

Meaning "pack compactly, cram or crowd together" is from mid-15c. Sense of "to fill (a container) with things arranged more or less methodically" is from late 15c. Meaning "to go away, leave" is from mid-15c. Meaning "to force or press down or together firmly" (of dirt, snow, etc.) is by 1850.

Some senses suggesting "make secret arrangement, manipulate so as to serve one's purposes" are from an Elizabethan mispronunciation of pact, as in pack the cards (1590s) "arrange the deck so as to give one undue advantage." The sense of "to carry or convey in a pack" (1805) led to the general sense of "to carry in any manner;" hence "to be capable of delivering" (a punch, etc.), attested from 1921, and  pack heat "carry a gun," 1940s underworld slang. To pack it up "give up, finish" is by 1942. Related: Packed; packing.

"horse used in carrying burdens," c. 1500, from pack (n.) + horse (n.).

"to bundle up into a pack or package," 1915, from package (n.). Related: Packaged; packaging.

1530s, "the act of packing," from pack (n.) + -age; or from cognate Dutch pakkage "baggage." The main modern sense of "a bundle, a parcel, a quantity pressed or packed together" is attested from 1722. Package deal "transaction agreed to as a whole" is from 1952.

1875, "act of making into a package or packages," from package (n.).

mid-14c., pakker (mid-13c. as a surname), "one who packs goods in bundles for transportation," agent noun from pack (v.). As "a machine used for packing," by 1890. The Wisconsin U.S. football team was named at its founding in 1919 for the Indian Packing Company (a meat-canning operation where one of the founders worked as a shipping clerk), which gave the team organizers $500 for uniforms and equipment and let it use the company's field on condition that the team be named for its sponsor.

mid-15c., paket, "a little package or parcel" (late 12c. as a surname), "in earliest use applied to a parcel of letters or dispatches, and esp. to the State parcel or 'mail' of dispatches to and from foreign countries" [OED], from Middle English pak "bundle" (see pack (n.)) + diminutive suffix -et; perhaps modeled on Anglo-French pacquet (Old French pacquet), which ultimately is a diminutive of Middle Dutch pak or some other continental Germanic word cognate with the English one. A packet boat (1640s) originally was one that carried mails from country to country or port to port, then generally a vessel starting at regular dates and appointed times. In data transmission, packet-switching is attested from 1971.