←
Catalan ferro (cognate)
←
Spanish ferro (doublet)
←
Italian ferro (cognate)
←
Old Spanish fierro (inherited)
←
Portuguese ferro (cognate)
←
Romanian fier (cognate)
→
Dalmatian fiar (cognate)
→
Friulian fiêr (cognate)
→
Papiamentu heru (borrowed)
→
Aromanian her (cognate)
→
Tagalog yero (borrowed)