rétas n. (√ ri, rī) a flow, stream, current, flow of rain or water, libation, [RV.]; [AV.]
flow of semen, seminal fluid, sperm, seed, [RV.] &c. &c. (retaḥ-√ sic or ni-√ sic or ā-√ dhā with loc., ‘to discharge semen into’, impregnate; reto-√ dhā, [A.], to conceive; retaso 'nte, after the discharge of semen)