English
interknuckle
From inter- + knuckle.
Proto-Indo-European *h₁én ‘in’
Proto-Indo-European *h₁entér ‘between’
Proto-Italic *n̥ter ‘between’
Latin inter ‘between’
English inter-
Proto-Germanic *knukô ‘bone, joint’
Proto-Germanic *knukilaz ‘knuckle, knot, bump’
Proto-West Germanic *knukil ‘knuckle, joint, small bone’
Old English cnucel ‘the juncture of two bones’
Middle English knokel ‘finger joint’
English knuckle
Today it means
adj Between knuckles
Language periods are conventional ranges, not dates for this word.
Etymograph / interknuckle