derivation [derivations](act of tracing origin or descent) noun [UK: ˌde.rɪ.ˈveɪʃ.n̩] [US: ˌde.rə.ˈveɪʃ.n̩]
етимологияnoun {f}
etymology [etymologies](study of the historical development of languages, particularly of individual words) noun [UK: ˌe.tɪ.ˈmɒ.lə.dʒi] [US: ˌe.tə.ˈmɑː.lə.dʒi]