ostentate
To make an ambitious display of; to exhibit or show boastingly.
rare, transitive
It cannot avoid the brand of arrogancy, as well as hypocrisy, to challenge and ostentate that beauty or handsomeness of complexion as ours, which indeed is none of ours by any genuine right or property.
To boast, show off.
intransitive, obsolete, rare
Where it comes from
Borrowed from Latin ostentātus, perfect passive participle of ostentō (see -ate (verb-forming suffix)), intensive from ostendō. Doublet of ostent.
Adapted from the Wiktionary entry ostentate (CC BY-SA 4.0).