Where does “взад и вперёд” come from?

взад и вперёд (Russian) comes from Russian взад, from Ukrainian в-, from Ukrainian -бира́ти, from Serbo-Croatian -ати, from Proto-Slavic -ati, from Proto-Slavic -ěti, from Proto-Balto-Slavic -ēˀtei, from Proto-Indo-European -éh₁ti — Creates stative verbs from perfective roots;...

взад и вперёд (Russian): up and down

Definitions

  1. up and down

Ancestry of “взад и вперёд”, step by step

взад и вперёд traces back through 3 separate lines of ancestry.

via Russian взад

StepLanguageWordMeaning
1Russianвзадback
2Ukrainianв-into, in indicates inward movement
3Ukrainian-бира́ти
4Serbo-Croatian-атиA suffix appended to words to form a verb
5Proto-Slavic-atiFrom imperfective verbs, forming...
6Proto-Slavic-ětiInherited, stative; Deadjectival, inchoative;...
7Proto-Balto-Slavic-ēˀtei
8Proto-Indo-European-éh₁tiCreates stative verbs from perfective roots;...

via Russian и

StepLanguageWordMeaning
1Russianиand
2Greekηnominative feminine singular of ο
3Ancient Greekfeminine nominative singular of ὁ
4Proto-Hellenic*hā́that (demonstrative)
5Proto-Indo-Europeanséh₂
6Proto-Indo-Europeanthis; that

via Russian вперёд

StepLanguageWordMeaning
1Russianвперёдforward; from now on; in advance
2Russianпе́ред
3Old East Slavicпередъ
4Proto-Slavicperdъbefore, in front of; before
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European -éh₁tiEvery word from Proto-Slavic -ětiEvery word from Proto-Slavic -ati