English

hyperreflexive

From hyper- + reflexive.

Proto-Indo-European *úp

Proto-Indo-European *upér ‘over, above’

Proto-Hellenic *hupér

Ancient Greek ὑπέρ ‘over’

Latin reflexus ‘turned back or away, reflected’

Medieval Latin reflexīvus

Today it means

adj Involving overreaction in a reflex response.

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

Etymograph / hyperreflexive