√SfD 'be defiant'
present: [1.] S/arDati etc. S/arDate etc. [perfect: SaSfDe aSISfDat aSarDizwa Sartsyati SarDizyate SarDitA ]secondary: intensive: SarISfD- -- desiderative: SiSarDiza- SiSftsa- -- causative: SarD/ayati etc. derivatives: S/arDa -SarDin V. S/arDya RV. SfDy/A RV. SarDana C. S/arDas V.B. -SarDayitf C. Not worth dividing into two roots.