Where does “подмножество” come from?

подмножество (Russian) comes from Russian под-, from Proto-Slavic podъ- — under-.

подмножество (Russian): subset

Definitions

  1. subset

Ancestry of “подмножество”, step by step

StepLanguageWordMeaning
1Russianпод-upwards; closer; adding
2Proto-Slavicpodъ-under-
Every word from Proto-Slavic podъ- →Every word from Russian под- →