Where does “високошвидкісний” come from?

високошвидкісний (Ukrainian) comes from Ukrainian висо́кий, from Russian высо́кий, from Old East Slavic вꙑсокъ, from Proto-Slavic vysokъ, from Proto-Slavic -okъ, from Proto-Slavic -kъ, from Proto-Indo-European -kos — Creates deadjectival and desubstantival...

високошвидкісний (Ukrainian): high-speed

Definitions

  1. high-speed

Ancestry of “високошвидкісний”, step by step

високошвидкісний traces back through two separate lines of ancestry.

via Ukrainian висо́кий

StepLanguageWordMeaning
1Ukrainianвисо́кийhigh
2Russianвысо́кийhigh
3Old East Slavicвꙑсокъhigh; tall
4Proto-Slavicvysokъhigh; tall
5Proto-Slavic-okъFrom adjectives, forms a carrier of the...
6Proto-Slavic-kъDeverbal, forms token nouns; From expressive or...
7Proto-Indo-European-kosCreates deadjectival and desubstantival...

via Ukrainian шви́дкість

StepLanguageWordMeaning
1Ukrainianшви́дкістьspeed
2Ukrainian-ість-hood, -ness, -ity
3Proto-Slavic-ostьUsed with adjectival stems to form abstract...
Every word from Proto-Indo-European -kosEvery word from Proto-Slavic -kъEvery word from Proto-Slavic -okъ