rodomont
/ˈrɒdəmɒnt
/noun archaic
A person who boasts or brags.He quickly became mild and calm — a posture ill becoming such a Rodomont....
- I can never think how I avoided being stabbed myself or stabbing one of these two Rodomonts, and the whole business turned about me like a piece of a dream.
- He apologizes, not wanting to be considered a Rodomont, for having to mention his military exploits again.
Origin
Late 16th century: French, from Italian rodomonte, from the name of a boastful character in the Orlando epics.