Portuguese trom

← Catalan tro (cognate)

← Spanish trueno (cognate)

← Galician trono (cognate)

← Ancient Greek τόνος (derived)

← Latin tonus (derived)

← Latin (mention)

← Latin (mention)

← Latin tonitrus (mention)

← Occitan tron (cognate)

← Portuguese tom (doublet)

← Old Portuguese trõo (inherited)

← Old Portuguese trõar (mention)

→ Catalan tro (cognate)

→ Spanish trueno (cognate)

→ Galician trono (cognate)

→ Occitan tron (cognate)

→ Portuguese tom (doublet)

→ Portuguese troar (mention)

→ Sicilian tronu (mention)