Occitan acièr

← Catalan acer (cognate)

← Spanish acero (cognate)

← French acier (cognate)

← Galician aceiro (cognate)

← Italian acciaio (cognate)

← Latin acies (inherited)

← Portuguese aço (cognate)

→ Asturian aceru (cognate)

→ Catalan acer (cognate)

→ Spanish acero (cognate)

→ French acier (cognate)

→ Friulian açâr (cognate)

→ Galician aceiro (cognate)

→ Romansch atschal (cognate)

→ Romansch itschal (cognate)

→ Romansch atschel (cognate)