salutation in parting, also goodbye, good bye, good-by, 1590s, from godbwye (1570s), a contraction of God be with ye (late 14c.), influenced by good-day, good evening, etc. As a noun from 1570s. Intermediate forms in 16c. include God be wy you, God b'uy, God buoye, God buy, etc.
c. 1300, deite, "divine nature, godhood, attributes of a god;" late 14c., "a god, God, the Supreme Being or self-existing spirit," from Old French deité, from Late Latin deitatem (nominative deitas) "divine nature," coined by Augustine from Latin deus "god," from PIE *deiwos "god," from root *dyeu- "to shine," in derivatives "sky, heaven, god." From 1580s as "a being to whom a divine or godlike nature is attributed."
late 14c., "pertaining to, of the nature of, or proceeding from God or a god; addressed to God," from Old French divin, devin (12c.), from Latin divinus "of a god," from divus "of or belonging to a god, inspired, prophetic," related to deus "god, deity" (from PIE root *dyeu- "to shine," in derivatives "sky, heaven, god").
Weakened sense of "excellent in the highest degree, heavenly" had evolved by late 15c. The phrase divine right, indicating one conferred by or based on ordinance of God, is from c. 1600.
"distinguished woman singer, prima donna," 1864, from Italian diva "goddess, fine lady," from Latin diva "goddess," fem. of divus "a god, divine (one)," related to deus "god, deity" (from PIE root *dyeu- "to shine," in derivatives "sky, heaven, god").