boniness vs bonyness

boniness and bonyness both are nouns.

Word	Noun	Adjective	Verb	Adverb
boniness	Yes	No	No	No
bonyness	Yes	No	No	No

As nouns, boniness and bonyness are synonyms defined as:

boniness and bonyness: extreme leanness (usually caused by starvation or disease)

Other synonyms of boniness include emaciation, gauntness, maceration.

boniness (noun)	bonyness (noun)
extreme leanness (usually caused by starvation or disease)	extreme leanness (usually caused by starvation or disease)