Where does “-чьнии” come from?

-чьнии (Old East Slavic) comes from Proto-Slavic -ťь — Alternative form of *-tь.

Ancestry of “-чьнии”, step by step

StepLanguageWordMeaning
1Proto-Slavic-ťьAlternative form of *-tь

Words derived from “-чьнии

Every word from Proto-Slavic -ťь