Where does “שיר” come from?

שיר (Yiddish) comes from Hebrew שִׁיר — to sing; lyric song; poem; poem, song.

שיר (Yiddish): song

Definitions

Step	Language	Word	Meaning
1	Hebrew	שִׁיר	to sing; lyric song; poem; poem, song

שיר — Etymology, Origin & Word History | Etymology Explorer