bonyness vs boniness

bonyness and boniness both are nouns.

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

As nouns, bonyness and boniness are synonyms defined as:

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

Other synonyms of bonyness include emaciation, gauntness, maceration.

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