From kane (a straight reed, i.e. Rod); a rule ("canon"), i.e. (figuratively) a standard (of faith and practice); by implication, a boundary, i.e. (figuratively) a sphere (of activity)line, rule.
Textus Receptus Greek Text
kanona2 Cor 10:15
kanoni2 Cor 10:16, Gal 6:16, Php 3:16
kanonoV2 Cor 10:13