Where does “запотевать” come from?
запотевать (Russian) comes from Russian запоте́ть, from Russian поте́ть, from Russian пот, from Old East Slavic потъ, from Proto-Slavic potъ, from Proto-Balto-Slavic paktas, from Proto-Indo-European pokʷtós, from Proto-Indo-European pekʷ-.
запотевать (Russian): to steam up, to mist up
Ancestry of “запотевать”, step by step