Where does “տրուբա” come from?

տրուբա (Armenian) comes from Russian труба́, from Old East Slavic труба, from Proto-Slavic trǫba — pipe, tube; trumpet.

Ancestry of “տրուբա”, step by step

StepLanguageWordMeaning
1Russianтруба́pipe; trumpet
2Old East Slavicтруба—
3Proto-Slavictrǫbapipe, tube; trumpet
Every word from Proto-Slavic trǫba →Every word from Old East Slavic труба →Every word from Russian труба́ →