English

activatory

Activatory comes from English activate.

attested reconstructed ? uncertain or disputed

Earlier history not traced here.

Lineage

A compound of activate + -ory

Proto-Indo-European *h₂eǵ-

…

Latin āctīvus ‘active’

Old French actif ‘active’

Middle English actyf ‘active, reactive’

English active

adj That acts as an activator.

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