Proto-Germanic *fedwōr tigiwiz

→ English forty (inherited)

→ Afrikaans veertig (inherited)

→ Old English feowertig (inherited)

→ Cimbrian viartzekh (inherited)

→ Cimbrian viarskh (inherited)

→ Danish fyrretyve (inherited)

→ German vierzig (inherited)

→ Middle Dutch viertich (inherited)

→ Middle English fourty (inherited)

→ West Frisian fjirtich (inherited)

→ Gothic 𐍆𐌹𐌳𐍅𐍉𐍂 𐍄𐌹𐌲𐌾𐌿𐍃 (inherited)

→ Dutch veertig (inherited)

→ Old Norse fjórir tigir (inherited)

→ Old Norse fjórutigi (inherited)

→ Old Frisian fiuwertich (inherited)

→ Old Saxon fiuwartig (inherited)

→ Saterland Frisian fjautich (inherited)

→ Yiddish פֿערציק (inherited)