Old English fēower

→ English four (inherited)

→ English fower (derived)

→ Old English feorþa (mention)

→ Old English fiþer- (cognate)

→ Old English feowerfeald (suffix)

→ Old High German fior (cognate)

→ Gothic 𐍆𐌹𐌳𐍅𐍉𐍂 (cognate)

→ Ancient Greek τέσσαρες (cognate)

→ Ancient Greek τέτταρες (cognate)

→ Latin quattuor (cognate)

→ Old Frisian fiuwer (cognate)

→ Oscan 𐌐𐌄𐌕𐌕𐌉𐌖𐌓 (cognate)

→ Yola vour (inherited)