vaingloryEnglishOxford New American Dictionaryvainglory /ˈvānˌɡlôrē, , ˈveɪnˌɡlɔri , ˌvānˈɡlôrē, ˌveɪnˈɡlɔri / ▸ noun literary inordinate pride in oneself or one's achievements; excessive vanity: his vainglory put the Republic at risk. – DERIVATIVES vaingloriously /ˌvānˈɡlôrēəslē/ adverb,vaingloriousness /ˌvānˈɡlôrēəsnəs, ˌveɪnˈɡlɔriəsnəs / noun– ORIGIN Middle English : suggested by Old French vaine gloire, Latin vana gloria.