- plumb
- plumb1verb1》 measure (the depth of a body of water).2》 explore or experience fully or to extremes: she had plumbed the depths of depravity.3》 test (an upright surface) to determine the vertical.noun a lead ball or other heavy object attached to a line for finding the depth of water or determining the vertical on an upright surface.adverb1》 informal exactly: plumb in the centre.2》 N. Amer. extremely or completely: they must be plumb crazy.3》 archaic vertically.adjective1》 vertical.2》 Cricket (of the wicket) level; true.Word HistoryThe word plumb entered Middle English via Old French, from the Latin plumbum 'lead'. It shares this root with the words plumber, plummet, and aplomb. A plumber was originally a tradesman who worked with lead, which was formerly used for water pipes. In the Middle Ages plummet denoted a plumb or plumb line; its use as a verb to mean 'fall rapidly' is a 20th-century development. Aplomb entered English from the French phrase à plomb 'according to a plummet': it originally meant 'perpendicularity, steadiness'.————————plumb2verb (plumb something in) Brit. install a bath, washing machine, etc. and connect it to water and drainage pipes.↘install and connect pipes in (a building or room).OriginC19: back-form. from plumber.
English new terms dictionary. 2014.