Where does “тривалість” come from?

тривалість (Ukrainian) comes from Ukrainian -ість, from Proto-Slavic -ostь — Used with adjectival stems to form abstract...

тривалість (Ukrainian): duration amount of time or a particular time interval

Definitions

  1. duration amount of time or a particular time interval

Ancestry of “тривалість”, step by step

StepLanguageWordMeaning
1Ukrainian-ість-hood, -ness, -ity
2Proto-Slavic-ostьUsed with adjectival stems to form abstract...
Every word from Proto-Slavic -ostьEvery word from Ukrainian -ість