ostentation
n. US //ˌɔstɛnˈteɪʃən// UK //ˌɒstəntˈeɪʃən// os·ten·ta·tion
Originated 1425–75 from late Middle English ostentacioun, borrowed from Middle French ostentation and its etymon Latin ostentātiō, ostentātiōnem, equivalent to ostentātus (past participle of ostentāre, to display or exhibit), frequentative of ostendere (“to present, display”) + -iōn. By surface analysis, ostent + -ation.