[pra-vaktavya] future participle passive to be propounded, imparted, or taught; -vaktri, masculine one who tells, imparts, or says anything (--˚); good speaker; teacher, propounder; originator of a story: -tva, neuter condition of an instructor; -vakana, neuter speaking; propounding; reciting; instruction; expression, designation; pro pounded doctrine, holy treatise, sacred scrip tures, specifically the Brâhmanas: -patu, adjective skilful in speech, eloquent; -vakanîya, future participle passive to be propounded.
Source: Macdonell