From a compound of kata and hegeomai; a guide, i.e. (figuratively) a teacher -- master.
see GREEK kata
see GREEK hegeomai
a. properly, a guide: Numen. quoted in Ath. 7, p. 313 d. b. a master, teacher: Matthew 23:8 R G, 10. (Dionysius Halicarnassus jud. de Thucydides 3, 4; several times in Plutarch (cf. Wetstein (1752) on Matthew, the passage cited.))