Catalan sofre

← Catalan sulfur (doublet)

← Spanish azufre (cognate)

← French soufre (cognate)

← Proto-Indo-European *swelplos (inherited)

← Proto-Indo-European *swel- (mention)

← Latin sulfur (inherited)

← Latin sulphur (mention)

← Occitan solpre (cognate)

→ Catalan sulfur (doublet)