اشتر, آستر, and أشتر آشپَز (âşpəz) (definite accusative آشپَزی, plural آشپَزلَر) Arabic spelling of âşpəz (“cook”) Declension of آشپز Persian Wikipedia has
Etymology tree Persian آش Persian پز Persian آشپز Middle Persian 𐭡𐭩𐭲𐭠 (bytʾ) Persian خانه Persian آشپزخانه From آشپز (âšpaz) + خانه (xâne). (Classical Persian)