deriv LSK ETT STT aSTA ALPH OLDHOMEPAGE NEWHOMEPAGE
A verb root is /ubhayapadI if it can take /parasmaipada and /Atmanepada endings. Example: as people can say
yajati यजति
yajate यजते
then the roots yaj यज् and pac पच् are /ubhayapadI.
In these two cases there is a change of meaning, but many /ubhayapadI roots can take flat or bent with no change of meaning.