Proto-Indo-European *kʷetwṓr

→ English four (inherited)

→ Afrikaans vier (inherited)

→ German vier (inherited)

→ Middle Dutch vier (inherited)

→ Faroese fýra (mention)

→ Old Swedish fiurir (mention)

→ Old High German fior (inherited)

→ Hunsrik fier (inherited)

→ Latin quattuor (inherited)

→ Norwegian Bokmål fire (mention)

→ Dutch vier (inherited)

→ Norwegian Nynorsk fire (mention)

→ Old Norse fjórir (mention)

→ Oscan 𐌐𐌄𐌕𐌕𐌉𐌖𐌓 (inherited)

→ Old Saxon fiuwar (inherited)

→ Sardinian bator (inherited)

→ Swedish fyra (mention)

→ Yiddish פֿיר (inherited)

→ Zealandic vier (inherited)