Where does “-а́тый” come from?

-а́тый (Russian) comes from Old East Slavic -атъ, from Proto-Slavic -àtъ.

Ancestry of “-а́тый”, step by step

Step	Language	Word	Meaning
1	Old East Slavic	-атъ	—
2	Proto-Slavic	-àtъ	—

Words derived from “-а́тый”

Every word from Proto-Slavic -àtъ →

-а́тый — Etymology, Origin & Word History | Etymology Explorer