бериллий Wiktionary
Borrowed from Russian бери́ллий (beríllij), from New Latin beryllium, from Old French beril, from Latin bērillus, bēryllus, from Ancient Greek βήρυλλος (bḗrullos, "beryl"), from Prakrit विरलायते, from Sanskrit वैडूर्य (vaiḍūrya), from Dravidian, probably named after Velur (modern day ...