Monier-Williams: A Sanskrit-English Dictionary (p. 847)
yava, m. barley (in the earliest times, prob. any grain or corn yielding flour or meal; pl. barley-corns), RV. &c. &c.; a barley-corn (either as a measure of length = 1/6 or 1/8 of an Aṅgula, VarBṛS.; or as a weight= 6 or 12 mustard seeds= 1/2 Guñjā, Mn., Yājñ.); any grain of seed or seed corn, Bhpr.; (in palmistry) a figure or mark on the hand resembling a barley-corn (supposed to indicate good fortune), VarBṛS.; N. of a partic. astron. Yoga (when the favourable planets are situated in the 4th and 10th mansions and the unfavourable ones in the 1st and 7th) ib.; speed, velocity, W. (prob. w.r. for java); a double convex lens ib. [Cf. Zd. yava; Gk. ......; Lith. &256791[847,2] javai.]