rummageyoudaoicibaDictYouDict[rummage 词源字典]
rummage: [16] Rummage is etymologically ‘roomage’. It originally denoted the ‘stowage of cargo in a ship’s hold’. It came from Anglo- Norman *rumage, a reduced form of Old French arrumage. This was derived from the verb arrumer ‘stow in a hold’, which itself was based on run ‘ship’s hold’. And this in turn was borrowed from Middle Dutch ruim ‘space’, a relative of English room. The verb rummage, derived from the noun, was also used for ‘search a ship’s hold’, which is where the modern notion of ‘rummaging around’ comes from.
=> room[rummage etymology, rummage origin, 英语词源]
rummage (v.)youdaoicibaDictYouDict
1540s, "arrange (cargo) in a ship," from rummage (n.), 1520s, "act of arranging cargo in a ship," a shortening of Middle French arrumage "arrangement of cargo," from arrumer "to stow goods in the hold of a ship," from a- "to" + rumer, probably from Germanic (compare Old Norse rum "compartment in a ship," Old High German rum "space," Old English rum; see room (n.)). Or else from English room (n.) + -age.

Meaning "to search closely (the hold of a ship), especially by moving things about" first recorded 1610s. Related: Rummaged; rummaging. Rummage sale (1803) originally was a sale at docks of unclaimed goods.