webbed vs webby

webbed and webby both are adjectives.

Word	Noun	Adjective	Verb	Adverb
webbed	No	Yes	No	No
webby	No	Yes	No	No

As adjectives, webbed and webby are synonyms defined as:

Other synonyms of webbed include lacy, netlike, netted, weblike.

webbed (adjective)	webby (adjective)
(of the feet of some animals) having the digits connected by a thin fold of skin	having open interstices or resembling a web
having open interstices or resembling a web