Where does “Bradypus” come from?

Bradypus (Translingual) comes from Ancient Greek βραδύς, from Proto-Indo-European gʷr̥dus.

Ancestry of “Bradypus”, step by step

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

Bradypus — Etymology, Origin & Word History | Etymology Explorer