Where does “дровишки” come from?

дровишки (Russian) comes from Russian дрова́, from Proto-Slavic dъrva — firewood.

Ancestry of “дровишки”, step by step

StepLanguageWordMeaning
1Russianдрова́firewood
2Proto-Slavicdъrvafirewood
Every word from Proto-Slavic dъrvaEvery word from Russian дрова́