Mehrtash is a Persian-Turkish name for boys that means âkindâ, âaffectionateâ, from the Persian word mehr (âaffectionâ) and the Turkish word tash (âone who accompaniesâ, thus âone who has/possessesâ). Since mehr also means âthe Sunâ in Persian, Mehrtash could also mean âSun-possessorâ, and figuratively âradiantâ, âfull of lightâ.