κανών, -όνος, ὁ
(cf. κάννα, and Heb. קָנֶה, a reed), [in LXX: Mi 7:4, Jth 13:6, IV Mac 7:21 (and in Aq., Ps 18 (19):5, Jb 38:5)*;]
1. a rod or bar (Jth 13:6).
2. a measuring rule; hence, metaph,
3. a rule or standard: Ga 6:16.
4. a limit (RV, province): II Co 10:13, 15, 16. (For the history of the word and esp. its later meanings, v. Westc., Canon, App. A; cf. also MM, Exp., xv; Cremer, 744.)†