"article of food," early 14c., from Anglo-French viaunde, Old French viande "food (vegetable as well as animal), victuals, provisions" (11c.), a dissimilation of Vulgar Latin *vivanda, from Late Latin vivenda "things for living, things to be lived upon," in classical Latin, "be live," neuter plural gerundive of vivere "to live" (from PIE root *gwei- "to live"). The French word later was restricted to fresh meat.
late 14c., "delightfulness; fastidiousness; quality of being addicted to sensuous pleasure," from delicate + abstract noun suffix -cy. Meaning "fine food, a dainty viand" is from early 15c. Meaning "fineness, softness, tender loveliness" is from 1580s; that of "weakness of constitution" is from 1630s.