English

hyporesponse

From hypo- + response.

Proto-Indo-European *upó ‘under, below’

Ancient Greek ὑπό ‘under’

English hypo-

Proto-Indo-European *spend- ‘to libate’

…

Latin respōnsus ‘answered’

Latin respōnsum ‘answer’

Old French respuns ‘response’

Middle English respounse

Today it means

noun A less than normal response to a particular stimulus

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

Etymograph / hyporesponse