ostentation
n.
mid-15c., from Old French ostentacion (mid-14c.) and directly from Latin ostentationem (nominative ostentatio) "showing, exhibition, vain display," noun of action from past participle stem of ostentare "to display," frequentative of ostendere "to show" (see ostensible).
〔李〕[os-(obs-) = in front of 在……之前；tent = to stretch 展开；-ation n.=the act表行为→“the act of stretching one's belongings in front of others在他人面前展示财物”→] n.① act of showing;display to draw attention or admiration显耀；卖弄