"things dainty and gratifying to the palate," early 15c., plural of delicacy in the "fine food" sense.
Entries linking to delicacies
delicacy n.
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.