**Response to @nrken19:**
Alternatively:
Proto-Iranian: \*axšaina- which respectively means "blue-green, turquoise”, compare Ossetian: æxsin "dark blue" Sogdian: /ᵊxšēn(ē)/ “greenish, blueish"-> Sogd. pers. name xšēnak
https://nitter.moomoo.me/nrken19/status/1649399727899783168#m