Where does “posadka” come from?

posadka (Polish) comes from Polish posada, from Polish posadzić, from Polish sadzić, from Proto-Slavic saditi, from Proto-Balto-Slavic *sōdī́ˀtei, from Proto-Indo-European sodéyeti, from Proto-Indo-European -éyeti, from Proto-Indo-European -yeti — Creates transitive imperfective verbs from roots.

Ancestry of “posadka”, step by step

StepLanguageWordMeaning
1Polishposadasituation, job, position, post; employment
2Polishposadzićto plant; to seat, to sit
3Polishsadzićto plant
4Proto-Slavicsaditito plant
5Proto-Balto-Slavic*sōdī́ˀteito set, to plant
6Proto-Indo-Europeansodéyetito set, to seat, to cause to sit
7Proto-Indo-European-éyetiForms causative imperfective verbs from roots;...
8Proto-Indo-European-yetiCreates transitive imperfective verbs from roots
Every word from Proto-Indo-European -yetiEvery word from Proto-Indo-European -éyetiEvery word from Proto-Indo-European sodéyeti