Where does “بن” come from?
بن (Persian) comes from Middle Persian بوّن, from Proto-Iranian *buHnáh, from Proto-Indo-Iranian bʰudʰnás, from Proto-Indo-European bʰudʰ(m̥)nés, from Proto-Indo-European bʰudʰmḗn, from Proto-Indo-European dʰewbʰ-, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.
بن (Persian): bottom; foundation; root
Ancestry of “بن”, step by step