vAdin
vādin , adj. m. (specialized mgs. of Skt. id. ), ( 1 ) one who proclaims (the doctrine, or learning); as ep. of a Buddha: Mvy 70 ( cf. next and vādi-siṃha ); n. sg. vādi or vādī, followed by pravādi (°dī), a declarer, a proclaimer (of learning), or perh. an eloquent proclaimer ( acc. to Senart vādi-pravādin, cpd. , which seems less likely), (brāhmaṇo vedapārago …) vādi pravādi ( Senart with v.l. pravādī) Mv iii.390.8 (prose); (adhīyāpito) vādi ( v.l. vādī) pravādī 394.10 (prose); ( 2 ) ifc. , calling oneself … (without justification): ye ete tubhyaṃhi ( mss. ; instr. pl. ) ānītā ( em. ) aśāstārā ( mss. , n. pl. ) śāstāra-vādino Mv i.254.1 (prose), who are no teachers but call themselves teachers (so mss. , Senart em. wrongly).
Vādin (adjective) (—°) [from vāda] speaking (of), saying, asserting, talking; professing holding a view or doctrine; arguing. Absolutely only at A II 138 (cattāro vādī four kinds of disputants); Snp 382 (ye vā pi c'aññe vādino professing their view). Otherwise —°, e.g. in agga° "teacher of things supreme" Thag 1142; uccheda° professing the doctrine of annihilation Nett 111 (see uccheda); kāla°, bhūta° attha° etc. speaking in time, the truth and good etc. D I 4, 165; A I 202; V 205, 265, 328; caṇḍāla° uttering the word caṇḍāla Mhv 5, 60; tathā° speaking thus, consistent or true speaker D III 135; {545} Snp 430; Dhamma° professing the true doctrine S III 138; in combination with vinaya-vādin as much as "orthodox" Vin III 175; mahā° a great doctrinaire or scholar Pj II 540; yatha° cf. tathā°; sacca° speaking the truth A II 212; the Buddha so-called Thig 252 f.; vaṇṇa° singing the praises (of) Vin II 197.