English

in-between

From in- + between.

A compound of in- + between

Proto-Indo-European *h₁én ‘in’

Proto-Germanic *in ‘into’

English in-

Old English betwēonum ‘between’

Middle English betwene

Today it means

adj Lying between; neither one thing nor the other; intermediary.

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

Etymograph / in-between