попъ (Old Church Slavonic) comes from Ancient Greek παπᾶς, from Old Norse súla, from Proto-Germanic sūliz, from Proto-Indo-European ḱsewl-, from Proto-Indo-European ḱsew- — to scrape, shave, sharpen.
попъ (Old Church Slavonic): priest
Definitions
priest
Ancestry of “попъ”, step by step
попъ traces back through two separate lines of ancestry.