Where does “цирк” come from?

цирк (Mongolian) comes from Russian цирк, from Latin circus, from Ancient Greek κρίκος, from Proto-Indo-European (s)ḱer- — dung, manure, filth; manure, dung, filth.

цирк (Mongolian): circus

Definitions

circus

Ancestry of “цирк”, step by step

Step	Language	Word	Meaning
1	Russian	цирк	circus; cirque
2	Latin	circus	a circular line or orbit; circle, ring; a...
3	Ancient Greek	κρίκος	ring
4	Proto-Indo-European	(s)ḱer-	dung, manure, filth; manure, dung, filth

Every word from Proto-Indo-European (s)ḱer- →Every word from Ancient Greek κρίκος →Every word from Latin circus →