√pi 'swell, fatten'
present: [1.] p/ayate -- p/iyAna -- pIpih/i pipyatam etc. pIp/ayat etc. pIpaya /apIpet etc. /apIpayat /apIpema /apIpyan pIp/ayanta p/IpyAna -- [5.] pinv/ant pinvat/I pinvire pinvAn/a pinvAte apinvAtAm perfect: pIp/Aya etc. pIpeTa pipyaTus pipyus pipye? pIpyAn/a verbal: pIn/a AV.+ derivatives: -paya? p/ayas V.+ -pyasa? AV. -pit RV. pit/u V.B. pIy/Uza V.+ p/Iva AB. p/Ivan V.+ pIvANs M. pIvara E.+ p/Ivas V.B. p/IvizWa ÇB. The roots pinv and pyA (given for convenience separately) are extensions of this. The classification of the reduplicated forms is difficult and questionable.