Where does “nonreptilian” come from?

nonreptilian (English) comes from English non, from French non, from Old French non, from Latin nōn, from Old Latin noenum, from Proto-Indo-European óynos — one; single.

nonreptilian (English): Not reptilian

Definitions

Not reptilian

Ancestry of “nonreptilian”, step by step

nonreptilian traces back through two separate lines of ancestry.

via English non

Step	Language	Word	Meaning
1	English	non	Obsolete form of none
2	French	non	no; not; a no, a negative response
3	Old French	non	no; not; Alternative form of nom
4	Latin	nōn	not
5	Old Latin	noenum	—
6	Proto-Indo-European	óynos	one; single

via English reptilian

Step	Language	Word	Meaning
1	English	reptilian	Of or relating to the members of the class...
2	English	-ian	From, related to, or like; One from, belonging...
3	English	Hobbesian	Involving unrestrained, selfish, and uncivilized...
4	English	Hobbes	a surname
5	English	Robert	—
6	Anglo-Norman	Robert	—

Every word from Proto-Indo-European óynos →Every word from Old Latin noenum →Every word from Latin nōn →