Where does “noncrucial” come from?

noncrucial (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.

noncrucial (English): Not crucial

Definitions

Not crucial

Ancestry of “noncrucial”, step by step

noncrucial 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 crucial

Step	Language	Word	Meaning
1	English	crucial	Essential or decisive for determining the outcome...
2	French	crucial	cruciform; crucial, critical, vital
3	Latin	crux	wooden frame on which criminals were crucified,...
4	Proto-Italic	*kruks	—
5	Proto-Indo-European	sḱer-	to caw, crow

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