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third-person singular simple present ostentates, present participle ostentating, simple past and past participle ostentated
(transitive, obsolete) To make an ambitious display of; to exhibit or show boastingly. quotations
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.
1701, John Gauden (attributed), Several Letters between Two Ladies Wherein the Lawfulness and Unlawfulness of Artificial Beauty