English
fanfold
From fan + fold.
Proto-Indo-European *h₂weh₁- ‘to blow’
Latin vannus ‘fan for winnowing grain’
Old English fann ‘a winnowing fan’
Middle English fan
English fan
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
adj Having the shape of fan or concertina, with a row of sheets alternately folded backwards and forwards.
Language periods are conventional ranges, not dates for this word.
Etymograph / fanfold