Breton gwezh

← Breton gwech (mention)

← Breton gwezh (mention)

← Proto-Brythonic *gweiθ (inherited)

← Proto-Celtic *wextā (inherited)

← Welsh gwaith (cognate)

← Proto-Indo-European *weǵʰ- (derived)

← Cornish gweyth (cognate)

← Old Breton gueith (inherited)

← Old Irish fecht (cognate)

→ Breton gwezhall (compound)

→ Breton gwezh (mention)

→ Breton a-wezhioù (mention)

→ Welsh gwaith (cognate)