English
interfold
From inter- + fold.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Indo-European *pel- ‘to fold’
Proto-Germanic *falþaną ‘to fold’
Proto-West Germanic *falþan ‘to fold’
Old English fealdan ‘to fold’
Middle English folden ‘to fold’
English fold
Today it means
verb To fold one into another; fold together.
Language periods are conventional ranges, not dates for this word.
Etymograph / interfold