√dIv1 'play'
present: [4.] d/Ivyati etc. V.+ d/Ivyate etc. B.+ divyati etc. perfect: did/eva aorist: [3.] adIdivat -- [5.] adevIt etc. future: [1.] devizyati etc. E.+ adevizyat -- [2.] devitA verbal: dyUt/a AV.+ dyUna devitum E.+ devitvA dyUtvA -d/Ivya secondary: intensive: dedIv- -- desiderative: dideviza- dudyUza- dudyUzaya- -- causative: devayati etc. derivatives: d/Iv dy/U -d/Ivan V. dIvana C. -deva B. d/evana V.+ devin AV.+ devitavya E. devitf E.+ -dyUty`a RV. Proper form, dIU; and it has nothing to do with the so-called root div 'shine', which is diu.