dainty (adj.)

c. 1300, deinte, "delightful, pleasing" (late 12c. as a surname), from dainty (n.); see below. Meaning evolved in Middle English to "choice, excellent" (late 14c.) to "delicately pretty, exhibiting exquisite taste or skill" (c. 1400). Sense of "fastidious, affectedly fine, weak, effeminate" is from 1570s. Related: Daintiness.

The noun is Middle English deinte "regard, affection" (mid-13c.), from c. 1300 as "excellence, elegance;" also "a luxury, a precious thing, fine food or drink;" from Anglo-French deinte, Old French deintie (12c.) "price, value," also "delicacy, pleasure," from Latin dignitatem (nominative dignitas) "greatness, rank, worthiness, worth, beauty," from dignus "worthy, proper, fitting," from PIE *dek-no-, from root *dek- "to take, accept."

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Definitions of dainty from WordNet
dainty (adj.)
delicately beautiful;
a dainty teacup
Synonyms: exquisite
dainty (adj.)
especially pleasing to the taste;
a dainty dish to set before a kind
dainty (adj.)
excessively fastidious and easily disgusted;
Synonyms: nice / overnice / prissy / squeamish
dainty (n.)
something considered choice to eat;
Synonyms: delicacy / goody / kickshaw / treat