gleeman
A professional singer, bard, or other entertainer.
historical
The ancient Celts carefully distinguished the poet, who was originally a priest and judge as well and whose person was sacrosanct, from the mere gleeman.
Where it comes from
From Middle English gleman, gleoman, from Old English glēomann, glīġman, corresponding to glee (“music; minstrelsy; entertainment”) + man. Cognate with Scots gle-man, gleman (“gleeman, minstrel”).
Adapted from the Wiktionary entry gleeman (CC BY-SA 4.0).