Simple past tense and past participle of embolden.(verb)
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Use "emboldened" in a sentence
"It may be that John Paul changed course somewhat after he had surveyed the Catholic world from Peter's throne, and that the credit he got for bringing down the Iron Curtain emboldened him to act magisterially rather than collegially."
"The same courage that moved the great poet to write in his own vernacular tongue, instead of in Latin, emboldened the artists to look away from the received standards, and to follow nature."
"The "deniers" have been "emboldened" -- as though they're only engaged in a game of gotcha rather than opposed to the completely pointless upheaval of developed economies."