Raya [fr. ri, riṇāti to let loose or flow, which is taken as ray at Dhtp 234, defd as "gamana," and at Dhtm 336 as "gati." The root ri itself is given at Dhtm 351 in meaning "santati," i. e. continuation. -- On etym. cp. Vedic retaḥ; Lat. rivus river=Gall, Rēnos "Rhine." See Walde, Lat. Wtb. s. v. rivus] speed, lit. current Abhp 40. See rava1.