source
Cross references: 1. origin source \'so-(*)rs, 'so.(*)rs\ n [ME sours, fr. MF sors, sourse, fr. OF, fr. pp. of sourdre] to rise, spring forth, fr. L surgere - more at SURGE 1a: the point of origin of a stream of water : FOUNTAINHEAD archaic 1b: SPRING, FOUNT 2a: a generative force : CAUSE 2b1: a point of origin 2b2: one that initiates : AUTHOR; also : PROTOTYPE, (MMODEL 2b3: one that supplies information 3: a firsthand document or primary reference work