Etymograph

English

irresponsive

From ir- + responsive.

Formed from in- + responsive

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Late Latin responsivus

Middle French responsif

English responsive

Today it means

adj That does not respond to stimuli; unresponsive.

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

Etymograph / irresponsive