Where does “shamrag” come from?

shamrag (Manx) comes from Old Irish semróc, from Old Irish semar, from Proto-Celtic semarā, from Proto-Indo-European semh₁r-.

shamrag (Manx): clover

Definitions

Step	Language	Word	Meaning
1	Old Irish	semróc	—
2	Old Irish	semar	—
3	Proto-Celtic	semarā	—
4	Proto-Indo-European	semh₁r-	—

shamrag — Etymology, Origin & Word History | Etymology Explorer