wafer vs cooky

wafer and cooky both are nouns.

Word	Noun	Adjective	Verb	Adverb
wafer	Yes	No	No	No
cooky	Yes	No	No	No

As nouns, cooky is a hypernym of wafer; that is, cooky is a word with a broader meaning than wafer:

Other hypernyms of wafer include biscuit, cookie.

wafer (noun)	cooky (noun)
a small thin crisp cake or cookie	any of various small flat sweet cakes
thin disk of unleavened bread used in a religious service (especially in the celebration of the Eucharist)	the cook on a ranch or at a camp
a small adhesive disk of paste; used to seal letters