noun, plural ep·i·tha·la·mi·ums, ep·i·tha·la·mi·a [ep-uh-thuh–ley-mee-uh] /ˌɛp ə θəˈleɪ mi ə/.
noun plural -mia (-mɪə)
- a poem or song written to celebrate a marriage; nuptial ode
1590s, “bridal song,” from Latin epithalamium, from Greek epithalamion “a bridal song,” from epi “at, upon” (see epi-) + thalamos “bridal chamber, inner chamber.”