Where does “-íti” come from?

-íti (Old Czech) comes from Proto-Slavic -iti, from Proto-Indo-European -éyeti, from Proto-Indo-European -yeti — Creates transitive imperfective verbs from roots.

Ancestry of “-íti”, step by step

StepLanguageWordMeaning
1Proto-Slavic-itiDeverbal, iterative; Deverbal, causative;...
2Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
3Proto-Indo-European-yetiCreates transitive imperfective verbs from roots

Words derived from “-íti”

Every word from Proto-Indo-European -yeti →Every word from Proto-Indo-European -éyeti →Every word from Proto-Slavic -iti →