PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Kathin
Kathin,(adj.) (-°) [cp.kathika] speaking; one who speaks,a speaker,preacher J.I,148 (dhamma-kathikesu citrakathī); Miln.90,348 (°seṭṭha best of speakers).See also kathaṁ-kathin.(Page 184)