ポルトガル語のtanque、タンク、コンテナから、グジャラート語のtankh、水槽、ストックタンク、ナレンドラ?モディ首相の州のようにヒンディー語から借用され、最終的にはサンスクリット語のtadaga、池からかもしれない。現在、軍用戦車の主な語彙的意味は、第一次世界大戦で英国が重装甲兵器を発見し、ドイツ軍を驚かせるための隠れ蓑として「戦車」と名付けられたことに由来する。
"When our men don't feel like trying," she says, "They 'tank' [give up]. I never tanked a match in my life and I never saw a girl do it. The men do it all the time in minor tournaments when they don't feel like hustling. You have to be horribly competitive to win in big-time tennis."Sometimes said to be from boxing, in some sense, perhaps from the notion of "taking a dive," but evidence for this is wanting. Related: Tanked; tanking. Adjective tanked "drunk" is from 1893.