S / succentor
noun

succentor

gen. succentōris · gender masculine · decl. 3rd
an accompanier
an accompanier in singing, Aug. Enarr. in Psa. 87, 1; Isid. 7, 12, 26.—
a furtherer; promoter figuratively
Trop., a furtherer, promoter: fabularum, Amm. 19, 12, 13; Isid. Orig. 6, 19, 13.