χορηγός

Etymology
From.

Noun

 * 1) a chorus leader, who could enter the story as a character able to interact with the characters of a play
 * 2) generally, the leader of a train or band
 * 3) in Athens, one who defrays the cost of a performance
 * 4) generally, one who supplies financial backing for any endeavour

Etymology
From.

Noun

 * 1) sponsor, backer, benefactor