PTS Pali-English dictionary - The Pali Text Society's Pali-English dictionary
Khattar
Khattar，[Sk．kṣattṛ fr．kṣatra] attendant，companion，charioteer，the king’s minister and adviser （Lat．satelles “satellite” has been compared for etym．） D．I，112 （=DA．I，280，kh° vuccati pucchita-pucchita-pañhaṁ vyākaraṇa-samattho mahāmatto：“kh° is called the King’s minister who is able to answer all his questions”）； Buddhaghosa evidently connects it with katheti，to speak，respond=katthā； gādhaṁ k° A．II，107=Pug．43 v．l．for kattā （cp．Pug．A 225）．（Page 232）