√vip 'tremble'
present: [1.] v/epate etc. V.+ v/epati etc. E.+ perfect: vivipre vepus? vivepe aorist: [1.] vipAn/a -- [3.] avIvipat etc. -- [5.] avepizwa etc. [future: vepizyate vepitA ]secondary: causative: vep/ayati etc. V.+ vip/ayanti derivatives: v/ip vipana-? RV. vipas- V.+ v/epa V.+ -vepin C. vepan/a V.+ v/epas RV. vep/aTu AV.+ v/epizWa RV. v/ipra V.+