apasphur 1
apa-√sphur (aor. Subj. 2. sg. -spharīs) to move suddenly aside or to lash out (as a cow during milking) RV. vi, 61, 14
apasphur 2
apa-sphúr mfn. bounding or bursting forth, (or figuratively) splashing out (said of the Soma) RV. viii, 69, 10 (cf. án-apasphur, &c.)

Sanskrit-English Dictionary, by M. Monier William