| 1 | Proto-Slavic | kaliti | to soil, muddle; to temper; to case-harden |
| 2 | Proto-Slavic | -iti | Deverbal, iterative; Deverbal, causative;... |
| 3 | Proto-Indo-European | -éyeti | Forms causative imperfective verbs from roots;... |
| 4 | Proto-Indo-European | -yeti | Creates transitive imperfective verbs from roots |