Proto-Indo-European *swelplos

→ English sulfur (derived)

→ Catalan sofre (inherited)

→ Spanish azufre (inherited)

→ French soufre (inherited)

→ Galician enxofre (inherited)

→ Galician xofre (inherited)

→ Italian zolfo (inherited)

→ Italian solfo (inherited)

→ Latin sulfur (derived)

→ Old Spanish sufre (inherited)

→ Portuguese enxofre (inherited)

→ Romanian sulf (derived)

→ Aromanian scljifur (inherited)