epithalamium (n.) Look up epithalamium at Dictionary.com
"bridal song," 1590s (earlier in nativized form epithalamy, 1580s), from Latin epithalamium, from Greek epithalamion "a bridal song," noun use of adjective meaning "of or for a bridal, nuptial," from epi "at, upon" (see epi-) + thalamos "bridal chamber, inner chamber" (see thalamus). Related: Epithalamic.