Where does “Seyhan” come from?

Seyhan (Turkish) comes from Turkish han, from Ottoman Turkish خان, from Classical Persian خان, from Old Turkic 𐰴𐰣, from Old Turkic 𐰴𐰍𐰣, from English kagan — Alternative spelling of khagan.

Ancestry of “Seyhan”, step by step

Seyhan traces back through two separate lines of ancestry.

via Turkish han

StepLanguageWordMeaning
1Turkishhankhan; inn
2Ottoman Turkishخانinn, caravanserai; khan
3Classical Persianخان—
4Old Turkic𐰴𐰣—
5Old Turkic𐰴𐰍𐰣khagan; king; ruler
6EnglishkaganAlternative spelling of khagan

via Proto-Indo-European sēy-

StepLanguageWordMeaning
1Proto-Indo-Europeansēy-to send, throw, drop, sow, deposit; to linger
2Proto-Indo-Europeanḱe-demonstrative particle; here; this, here
Every word from English kagan →Every word from Old Turkic 𐰴𐰍𐰣 →Every word from Old Turkic 𐰴𐰣 →