English
gangsaw
From gang + saw.
Proto-Indo-European *ǵʰengʰ- ‘to step, walk’
…
Proto-Germanic *gangaz ‘going, way’
Proto-West Germanic *gang ‘way, going’
Old English gang ‘journey; way, passage’
Middle English gang ‘journey; company’
English gang
Today it means
noun An arrangement of saws set in a single frame.
Language periods are conventional ranges, not dates for this word.
Etymograph / gangsaw