√dIp 'shine'
present: [4.] d/Ipyate etc. AV.+ d/Ipyati etc. E.+ perfect: didIpe aorist: [1.] adIpi -- [3.] adidIpat etc. adIdipat etc. -- [5.] adIpizwa [future: dIpizyate dIpitA ]verbal: dIpta U.+ secondary: intensive: dedIpyate etc. E.+ dedIpyantIm -- desiderative: didIpiza- -- causative: dIp/ayati etc. V.+ dIp/ayate etc. dIpy/ate derivatives: dIpa dIpaka E.+ dIpin C. dIpana S.+ d/Ipti B.+ dIpra C. Probably related with √2dI.