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Etymology
Possibly from.

Verb

 * 1) to be proud, to take pride , to pride oneself
 * 2) to proudly display
 * 3) to boast
 * 4) to stand proud, to stand proudly
 * 5) to be arrogant, to be prideful, to be proud, to vaunt oneself
 * 1) to boast
 * 2) to stand proud, to stand proudly
 * 3) to be arrogant, to be prideful, to be proud, to vaunt oneself
 * 1) to be arrogant, to be prideful, to be proud, to vaunt oneself