Portuguese trado

← Proto-Celtic *taratrom (derived)

← Spanish taladro (cognate)

← Galician trade (cognate)

← Ancient Greek τέρετρον (derived)

← Proto-Indo-European *terh₁- (derived)

← Old Portuguese traado (inherited)

→ Spanish taladro (cognate)

→ Galician trade (cognate)

→ Old Portuguese traedor (mention)