√sPUrj 'rumble'
present: [1.] sP/Urjati etc. AV.+ [perfect: pusPUrja apusPUrjat asPUrjIt sPURjizyati sPUrjitA ]verbal: sPUrjita E.+ -sPUrjya secondary: intensive: posPUrj- -- desiderative: pusPUrjiza- -- causative: sPUrj/ayati etc. V.+ derivatives: sPUrja sP/Urjaka B.+ -sPURjana C. -sPUrjaTu C. -sPUrji C.