English

incaution

From in- + caution.

A compound of in- + caution

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Latin cavēre ‘be on one's guard’

Latin cautus ‘cautious, careful’

Latin cautiō ‘precaution, caution’

Old French caution ‘security, surety’

Middle English caucioun ‘bail, guarantee, pledge’

Today it means

noun A lack of caution.

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

Etymograph / incaution