Where does “причём” come from?

причём (Russian) comes from Russian при, from Proto-Slavic pri, from Proto-Balto-Slavic prei, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

причём (Russian): moreover, and, at that, with

Definitions

  1. moreover, and, at that, with

Ancestry of “причём”, step by step

причём traces back through two separate lines of ancestry.

via Russian при

StepLanguageWordMeaning
1Russianприin the presence of; in the time of; at, by
2Proto-Slavicprinext to, by, at; with; to
3Proto-Balto-Slavicpreiat, with
4Proto-Indo-Europeanper-before, in front; first; to go through
5Proto-Indo-Europeanpr̥tóspassed , crossed

via Russian чём

StepLanguageWordMeaning
1Russianчёмthan
Every word from Proto-Indo-European pr̥tós →Every word from Proto-Indo-European per- →Every word from Proto-Balto-Slavic prei →