Latin firmō

→ English firmament (mention)

→ Dalmatian fermur (inherited)

→ Spanish firmar (mention)

→ French fermer (mention)

→ French firme (derived)

→ Galician firmar (mention)

→ Icelandic ferma (derived)

→ Italian firmare (mention)

→ Italian fermare (mention)

→ Latin confirmo (affix)

→ Latin firmans (mention)

→ Latin affirmo (affix)

→ Latin offirmo (affix)

→ Latin firmamentum (mention)

→ Latin firmatus (mention)

→ Latin firmaturus (mention)

→ Latin firmandus (mention)

→ Neapolitan fermà (inherited)

→ Dutch vormen (derived)