Where does “жрѣти” come from?

жрѣти (Old Church Slavonic) comes from Proto-Slavic žerti, from Proto-Balto-Slavic gerˀtei, from Proto-Indo-European gʷerh₃- — to swallow, devour, eat.

Ancestry of “жрѣти”, step by step

StepLanguageWordMeaning
1Proto-Slavicžertito devour, glut; Alternative form of *žьrti
2Proto-Balto-Slavicgerˀteidevour, lap up
3Proto-Indo-Europeangʷerh₃-to swallow, devour, eat
Every word from Proto-Indo-European gʷerh₃- →Every word from Proto-Balto-Slavic gerˀtei →Every word from Proto-Slavic žerti →