Where does “من” come from?

من (Chagatai) comes from Proto-Turkic beŋ, from Proto-Turkic *bẹ — Denotes "to be" for first person singular when at the end of an object; am.

Ancestry of “من”, step by step

StepLanguageWordMeaning
1Proto-Turkicbeŋmole on the face; birthmark; mole
2Proto-Turkic*bẹDenotes "to be" for first person singular when at the end of an object; am
Every word from Proto-Turkic *bẹ →Every word from Proto-Turkic beŋ →