English

hypovigilance

From hypo- + vigilance.

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

Ancient Greek ὑπό ‘under’

English hypo-

Latin vigilans ‘vigilant, watchful, alert’

Latin vigilantia ‘vigilance, alertness’

Middle French vigilance

Today it means

noun A state of reduced sensory sensitivity and response, for example when drowsy or bored.

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

Etymograph / hypovigilance