Where does “эквивалентный” come from?
эквивалентный (Russian) comes from Russian эквивале́нт, from German Äquivalent, from Latin aequivalēns, from Latin aequivaleō, from Latin valeō, from Proto-Italic walēō, from Proto-Indo-European h₂wl̥h₁éh₁yeti, from Proto-Indo-European h₂welh₁- — to rule; strong, powerful; hair; wool.
эквивалентный (Russian): equivalent
Ancestry of “эквивалентный”, step by step