Where does “нездійсненний” come from?

нездійсненний (Ukrainian) comes from Ukrainian не-, from Ukrainian з-, from Ukrainian леті́ти, from Old East Slavic летѣти, from Proto-Slavic letěti, from Proto-Indo-European lēk- — string, twig, tendril; leg, the main muscle of...

нездійсненний (Ukrainian): impracticable, unfeasible, unimplementable, unrealizable

Definitions

  1. impracticable, unfeasible, unimplementable, unrealizable

Ancestry of “нездійсненний”, step by step

StepLanguageWordMeaning
1Ukrainianне-not; un-
2Ukrainianз-attached to imperfective verbs to form the perfective aspect
3Ukrainianлеті́тиto fly
4Old East Slavicлетѣти—
5Proto-Slavicletětito fly
6Proto-Indo-Europeanlēk-string, twig, tendril; leg, the main muscle of...
Every word from Proto-Indo-European lēk- →Every word from Ukrainian не- →Every word from Proto-Slavic letěti →