Where does “noncausal” come from?

noncausal (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.

noncausal (English): Not causal

Definitions

Not causal

Ancestry of “noncausal”, step by step

noncausal 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 causal

Step	Language	Word	Meaning
1	English	causal	of, relating to, or being a cause of something;...
2	Latin	causālis	causal
3	Latin	causa	cause, reason; case, claim, contention; motive,...
4	Old Latin	caussa	cause, reason, purpose; case, claim; Archaic form...
5	Proto-Indo-European	kawd-teh₂	—

Every word from Proto-Indo-European óynos →