The aim of the article is to describe the semantics and origin, noted in ethnographic works from Polesie, of the beekeeping terms pczòły pàszut, pasznià ‘to bear benefit (pożytek), to work about the bee’. On the basis of historical materials of East Slavic languages and previous etymological hypotheses, the article relates the meaning of the described terms to the verb pachać ‘to plow; to create, to work’, recognizing it as a semantic archaism. The work also verifies the origin of the form pasznia in Old Polish lexis, recognizing it as a Beloruthenism.