√rAD 'succeed'
present: [5.] rADnoti etc. B.+ -- [4.] r/ADyate etc. AV.+ r/ADyati etc. S.+ perfect: rar/ADa etc. aorist: [1.] arADam rADati rADat etc. rADAs rADyAsam rADyAsma /arADi -- [3.] arIraDat etc. -- [4.] arAtsIt etc. -- [5.] rADizi etc. future: [1.] rAtsyati etc. -- [2.] rAdDA verbal: rAdD/a AV.+ rAdDv/A -rADya secondary: passive: rADyate -- intensive: rArAD- -- desiderative: rirAtsa- ritsa- -- causative: rADayati etc. AV.+ rADyate rirADayizati derivatives: r/ADa V.+ -rADin E. r/ADya V.+ r/ADana AV.+ -rADanIya C. r/ADas V.+ -rADi AV. r/AdDi AV.B.S. -rAdDf C. -rADayitf C. -rADayizRu E. The form iraDanta RV1., with the infin. ir/aDyE (for iraD/aDyE) RV1., appears to belong to this root.