dock (n.1)youdaoicibaDictYouDict[dock 词源字典]
"ship's berth," late 15c., from Middle Dutch or Middle Low German docke, perhaps ultimately (via Late Latin *ductia "aqueduct") from Latin ducere "to lead" (see duke (n.)); or possibly from a Scandinavian word for "low ground" (compare Norwegian dokk "hollow, low ground"). Original sense perhaps "furrow a grounded vessel makes in a mud bank." As a verb from 1510s. Related: Docked; docking.[dock etymology, dock origin, 英语词源]
dock (v.)youdaoicibaDictYouDict
"cut an animal's tail," late 14c., from dok (n.) "fleshy part of an animal's tail" (mid-14c.), related to Old English -docca "muscle," from Proto-Germanic *dokko "something round, bundle" (cognates: Old Norse dokka "bundle, girl," Danish dukke "doll," German Docke "small column, bundle, doll, smart girl"). Meaning "to reduce (someone's) pay for some infraction" is first recorded 1822. Related: Docked; docking.