←
Old English wulf (cognate)
←
Old Church Slavonic влькъ (cognate)
←
Proto-Indo-Iranian *wŕ̥kas (inherited)
←
Proto-Indo-European *wĺ̥kʷos (inherited)
←
Proto-Iranian *wŕ̥kah (inherited)
←
Tocharian B walkwe (cognate)
→
Persian گرگ (inherited)
→
Old Persian 𐎺𐎼𐎣𐎠𐎴 (mention)