English

interdoublet

From inter- + doublet.

Proto-Indo-European *h₁én ‘in’

Proto-Indo-European *h₁entér ‘between’

Proto-Italic *n̥ter ‘between’

Latin inter ‘between’

Old French doublet

Middle English doublet

Today it means

adj between doublets

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

Etymograph / interdoublet