Where does “Айжан” come from?

Айжан (Kazakh) comes from Kazakh жан, from Persian جان, from Middle Persian yʾn', from Proto-Iranian *wyaHnáH, from Proto-Indo-Iranian wyaHnás, from Proto-Indo-European h₂enh₁‑ — to breathe.

Ancestry of “Айжан”, step by step

Айжан traces back through two separate lines of ancestry.

via Kazakh жан

StepLanguageWordMeaning
1Kazakhжанside, flank
2Persianجانsoul; being; life
3Middle Persianyʾn'
4Proto-Iranian*wyaHnáH
5Proto-Indo-IranianwyaHnás
6Proto-Indo-Europeanh₂enh₁‑to breathe

via Kazakh ай

StepLanguageWordMeaning
1Kazakhайmoon; month
2Proto-Turkic*āymoon
Every word from Proto-Indo-European h₂enh₁‑