English

acausal

From a- + causal.

Formed from a- + causal

Proto-Indo-European *uds- ‘up, out’

Proto-Germanic *uz- ‘out-’

Proto-West Germanic *uʀ- ‘up, out, over’

English a-

Latin causa ‘cause’

Late Latin causalis

Today it means

adj Not causal.

Language periods are conventional ranges, not dates for this word.