Proto-IE: *dhrēn- (IndoIr *d-)
Meaning: bee, drone, hornet
Old Indian: druṇa- m. (L.) `scorpion; bee'
Old Greek: *thrṓnǟk-s m.: thrō̃naks, -akos Lacon. = kēphḗn Hsch.; tenthrēdṓn, -ónos f. 'a kind of wasp that makes its nest in the earth' (Arist.), tenthrḗnǟ id. (Nic.), tenthrḗnion n. 'the nest of the tenthrēdṓn' (Arist.), tenthrēniṓdēs, n. -es 'honeycombed' (Hp.)
Russ. meaning: насекомое (пчела, трутень, шершень)