bravado (n.)youdaoicibaDictYouDict[bravado 词源字典]
1580s, from French bravade "bragging, boasting," from Italian bravata "bragging, boasting" (16c.), from bravare "brag, boast, be defiant," from bravo (see brave (adj.)). The English word was influenced in form by Spanish words ending in -ado.[bravado etymology, bravado origin, 英语词源]