English

increep

From in- + creep.

Formed from in- + creep

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Proto-Germanic *kreupaną ‘to twist, creep’

Proto-West Germanic *kreupan ‘to creep, crawl’

Old English crēopan ‘to creep, crawl’

Middle English crepen ‘to creep’

English creep

Today it means

verb To creep in; to make a furtive entrance.

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