Where does “затачивать” come from?

затачивать (Russian) comes from Russian заточи́ть, from Russian точи́ть, from Proto-Slavic točiti, from Proto-Slavic tekti, from Proto-Balto-Slavic tektej, from Proto-Indo-European tekʷ- — to run, to flow.

затачивать (Russian): to sharpen

Definitions

  1. to sharpen

Ancestry of “затачивать”, step by step

StepLanguageWordMeaning
1Russianзаточи́тьto sharpen
2Russianточи́тьto shed; sharpen; to wear away
3Proto-Slavictočitito cause to flow, run
4Proto-Slavictektito run, to flow
5Proto-Balto-Slavictektej—
6Proto-Indo-Europeantekʷ-to run, to flow
Every word from Proto-Indo-European tekʷ- →Every word from Proto-Balto-Slavic tektej →Every word from Proto-Slavic tekti →