Delicate
late Middle English (in the sense ‘delightful, charming’): from French délicat or Latin delicatus, of unknown origin. Senses also expressed in Middle English (now obsolete) include ‘voluptuous’, ‘self-indulgent’, ‘fastidious’, and ‘effeminate’.
wiktionary
From Middle English delicat, from Latin delicatus(“giving pleasure, delightful, soft, luxurious, delicate, in Medieval Latin also fine, slender”), from delicia, usually in plural deliciae(“pleasure, delight, luxury”), from delicere(“to allure”), from de(“away”) + lacere(“to allure, entice”). Compare Spanish delgado(“thin, skinny”).
etymonline
delicate (adj.)
late 14c., of persons, "self-indulgent, loving ease;" also "sensitive, easily hurt, feeble;" of things, "delightful," from Latin delicatus "alluring, delightful, dainty," also "addicted to pleasure, luxurious, effeminate," in Medieval Latin "fine, slender;" related to deliciae "pleasure, delight, luxury," and delicere "to allure, entice," from de "away" (see de-) + lacere "to lure, entice," which is of uncertain origin. Compare delicious, delectable, delight.
Meaning "so fine or tender as to be easily broken" is recorded from 1560s. Meaning "requiring nice and skillful handling" is by 1742. Sense of "exquisitely adjusted in construction" is from 1756. Related: Delicateness.
