Where does “trs” come from?

trs (Czech) comes from Proto-Slavic tьrsъ, from Latin tirsus, from Ancient Greek Θύρσος.

trs (Czech): tuft, cluster, clump; bunch, cluster

Definitions

Step	Language	Word	Meaning
1	Proto-Slavic	tьrsъ	—
2	Latin	tirsus	—
3	Ancient Greek	Θύρσος	—

trs — Etymology, Origin & Word History | Etymology Explorer