Where does “brady-” come from?

brady- (English) comes from Ancient Greek βραδύς, from Proto-Indo-European gʷr̥dus.

brady- (English): slow

Definitions

Step	Language	Word	Meaning
1	Ancient Greek	βραδύς	slow; slow-witted, dull; late, tardy
2	Proto-Indo-European	gʷr̥dus	—

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