brandish
Word family verbbrandishnounbrandisher
bran·dish /ˈbrændɪʃ/ verb [transitiveT] written HOLDto wave something around in a dangerous or threatening way, especially a weapon 〔危险或气势汹汹地〕挥舞〔尤指武器〕 A man leapt out, brandishing a kitchen knife. 一个男人挥着一把菜刀跳了出来。
Origin brandish (1300-1400) Old French brandir, from brand “sword”