"negligence in performance of legal dute," 1570s, earlier simply "slackness, negligence, want of zeal" (late 14c.), from Anglo-French laches, Old French lachesse, from Old French lasche (Modern French lâche), verbal adjective from lascher, from Vulgar Latin *lascare, classical laxare, from laxus (see loose). Compare riches.
权威例句
1. Sale job is admittedly main, but service routine more not allow laches.
营销工作固然重要, 但服务工作更不容懈怠.
2. The plaintiff's right to set aside the deed is barred by laches.