Where does “экваториальный” come from?
экваториальный (Russian) comes from French équatorial, from Latin aequatorialis, from Latin aequātor, from Latin -tor, from Proto-Italic -tōr, from Proto-Indo-European -tōr, from Proto-Indo-European -tor-s.
экваториальный (Russian): equatorial
Ancestry of “экваториальный”, step by step