Where does “tyšnk'” come from?
tyšnk' (Middle Persian) comes from Proto-Iranian tŕ̥šnakah, from Proto-Iranian tŕ̥šnah, from Proto-Indo-European tr̥s-nó-s, from Proto-Indo-European ters- — dry.
Ancestry of “tyšnk'”, step by step
Words derived from “tyšnk'”