Where does “dopuszczający” come from?

dopuszczający (Polish) comes from Polish -ący, from Proto-Slavic -otь, from Proto-Slavic -otъ, from Proto-Slavic -tъ — Deverbal from mono-syllabic simple stems, forms...

Ancestry of “dopuszczający”, step by step

StepLanguageWordMeaning
1Polish-ący-ing
2Proto-Slavic-otьFrom basic roots, forms derivative nouns
3Proto-Slavic-otъFrom adjectives/adverbs, forms action nouns; From...
4Proto-Slavic-tъDeverbal from mono-syllabic simple stems, forms...
Every word from Proto-Slavic -tъ →Every word from Polish -ący →Every word from Proto-Slavic -otь →