succentor, ōris, m. [succino],
I an accompanier in singing, Aug. Enarr. in Psa. 87, 1; Isid. 7, 12, 26.—
II Trop., a furtherer , promoter : fabularum, Amm. 19, 12, 13; Isid. Orig. 6, 19, 13.
·noun A <<Subchanter>>. ...
Webster's Dictionary of the English Language