Where does “ötkün-” come from?

ötkün- (Old Turkic) comes from Azerbaijani kin, from Persian کین, from Middle Persian kyn', from Old Persian 𐎣𐎡𐎴, from Proto-Iranian *kaynáH, from Proto-Indo-Iranian *kaynáH, from Proto-Indo-European kʷoynéh₂, from Proto-Indo-European kʷey- — to pay; to avenge.

Ancestry of “ötkün-”, step by step

ötkün- traces back through two separate lines of ancestry.

via Azerbaijani kin

StepLanguageWordMeaning
1Azerbaijanikinhidden anger, spite, malice, grudge
2Persianکینhatred, enmity, rancour, malice; revenge
3Middle Persiankyn'hate, malice, revenge
4Old Persian𐎣𐎡𐎴
5Proto-Iranian*kaynáH
6Proto-Indo-Iranian*kaynáH
7Proto-Indo-Europeankʷoynéh₂payment; punishment, vengeance
8Proto-Indo-Europeankʷey-to pay; to avenge

via Azerbaijani ötmək

StepLanguageWordMeaning
1Azerbaijaniötməkto overtake
2Proto-Turkicöt-to pass, go over
Every word from Proto-Indo-European kʷey-Every word from Proto-Indo-European kʷoynéh₂Every word from Proto-Indo-Iranian *kaynáH