áśan m. (connected with √aś) [only áśnā (instr.) and áśnas, perhaps better derived from áśman, q.v., cf.Whitney's Gr.? 425 e], stone, rock RV. x, 68, 8
• a stone for slinging, missile stone RV. ii, 30, 4 and iv, 28, 5
• (NBD.) the firmanent RV. i, 164, i ; 173, 2 ; x, 27, 15
• [in the first two of these three passages the form áśnas has before been taken as nom. sg. m. fr. 1. aśna, q.v.]

Sanskrit-English Dictionary, by M. Monier William