Where does “nonthreat” come from?

nonthreat (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.

nonthreat (English): Something that does not pose a threat

Definitions

Something that does not pose a threat

Ancestry of “nonthreat”, step by step

nonthreat 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 threat

Step	Language	Word	Meaning
1	English	threat	An expression of intent to injure or punish...
2	Middle English	threte	—
3	Old English	þrēat	crowd, swarm, troop, army, press; pressure,...
4	Proto-Germanic	þrautaz	—
5	Proto-Indo-European	trewd-	to push, to thrust

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