[ met-uh-noi-uh ]
/ ˌmɛt əˈnɔɪ ə /
a profound, usually spiritual, transformation; conversion.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Word Origin and History for metanoia
1768, "penitence, spiritual conversion," from Greek metanoia "afterthought, repentance," from metanoein "to change one's mind or purpose," from meta- (see meta) + noein "to have mental perception," from noos "mind, thought."
Online Etymology Dictionary, © 2010 Douglas Harper