444. Those verbs

Those verbs, however, which in the 3d pl. pres. active lose न् n of the usual ending न्ति nti (550 b), lose it also in the present participle, and have no distinction of strong and weak stem.

a. Such are the verbs forming their present-stem by reduplication without adding a: namely, those of the reduplicating or hu-class (655) and the intensives (1012): thus, from √hu, present-stem juhu, participle-stem júhvat; intensive-stem johu, intensive participle-stem jóhvat. Further, the participles of roots apparently containing a contracted reduplication: namely, cákṣat, dā́çat, dā́sat, çā́sat, sáçcat; the aorist participle dhákṣat, and vāghát (?). Vavṛdhánt (RV., once), which has the nnotwithstanding its reduplication, comes, like the desiderative participles (1032), from a stem in a: compare vāvṛdhánta, vāvṛdhásva.

b. Even these verbs are allowed by the grammarians to make the nom.-acc.-voc. pl. neut. in anti.