Etymology of the Icelandic word ferma

Cognates

Danish forme, Danish formere, Dutch vormen, Dutch vorm, Dutch formeren, English confirm, English form, English form up, French confirmer, French forme, French former, German firmen, German Form, German formen, German formieren, Italian confermare, Italian formare, Italian forma, Italian confirmare, Latin forma, Lithuanian forma, Norwegian konfirmere, Norwegian formen, Norwegian formere, Polish forma, Provençal forma, Russian фopмa, Spanish forma, Spanish confirmar, Spanish formar, Swedish konfirmera, Swedish forma, Swedish formera