incorrigible

PRONUNCIATION: (in-KOR-i-juh-buhl)
MEANING:
adjective: Incapable of being corrected or reformed.
ETYMOLOGY:
From Latin in- (not) + corrigere (to correct). Ultimately from the Indo-European reg- (to move in a straight line, lead, or rule), which also gave us regime, direct, rectangle, erect, rectum, alert, source, surge, recto, regular, abrogate, arrogate, prorogue, interregnum, regent, and supererogatory. Earliest documented use: 1340.
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INCORRIGBIBLE - a bible incorrigible