saMvAcaka
-saṃvācaka , adj. , and °cikā , subst. f. , (to Skt. saṃ-vac- plus -aka, -ikā), in hasta-saṃ°, ‘talking with the hands’ , by signs (by or to the deaf): °cakaḥ (presumably personal) Mvy 7685 = Tib. lag brdaḥ byed pa , making hand signs (follows eḍamūka , q.v. ); °cikā, subst. (the process), badhirāṃ °cikayārthaṃ grāhayati Bbh 145.6 , by hand-conversation he makes the deaf understand the meaning .