Where does “знезараження” come from?

знезараження (Ukrainian) comes from Ukrainian знезара́зити, from Ukrainian зне-, 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...

Ancestry of “знезараження”, step by step

StepLanguageWordMeaning
1Ukrainianзнезара́зитиto disinfect
2Ukrainianзне-de-, un-: reversal, undoing
3Ukrainianз-attached to imperfective verbs to form the perfective aspect
4Ukrainianлеті́тиto fly
5Old East Slavicлетѣти
6Proto-Slavicletětito fly
7Proto-Indo-Europeanlēk-string, twig, tendril; leg, the main muscle of...
Every word from Proto-Indo-European lēk-Every word from Proto-Slavic letětiEvery word from Ukrainian з-