Where does “избыточность” come from?

избыточность (Russian) comes from Russian избы́точный, from Russian избы́ток, from Old Church Slavonic избꙑтъкъ, from Old Church Slavonic избꙑти, from Old Church Slavonic бꙑти, from Proto-Slavic *byti, from Proto-Balto-Slavic bū́ˀtei, from Proto-Indo-European bʰuH- — to become, grow, appear.

избыточность (Russian): redundancy, superfluousness

Definitions

  1. redundancy, superfluousness

Ancestry of “избыточность”, step by step

StepLanguageWordMeaning
1Russianизбы́точныйsurplus, redundant
2Russianизбы́токabundance, plenty
3Old Church Slavonicизбꙑтъкъremnant, relic
4Old Church Slavonicизбꙑтиto remain, exceed, survive
5Old Church Slavonicбꙑтиto be
6Proto-Slavic*byti
7Proto-Balto-Slavicbū́ˀteito be
8Proto-Indo-EuropeanbʰuH-to become, grow, appear
Every word from Proto-Indo-European bʰuH-Every word from Proto-Balto-Slavic bū́ˀteiEvery word from Proto-Slavic *byti