cog

1
[kog, kawg]
noun
  1. (not in technical use) a gear tooth, formerly especially one of hardwood or metal, fitted into a slot in a gearwheel of less durable material.
  2. a cogwheel.
  3. a person who plays a minor part in a large organization, activity, etc.: He's just a small cog in the financial department.
verb (used without object), cogged, cog·ging.
  1. (of an electric motor) to move jerkily.
verb (used with object), cogged, cog·ging.
  1. to roll or hammer (an ingot) into a bloom or slab.
Idioms
  1. slip a cog, to make a blunder; err: One of the clerks must have slipped a cog.

Origin of cog

1
1200–50; Middle English cogge, probably < Scandinavian; compare Swedish, Norwegian kugg cog

cog

2
[kog, kawg]
verb (used with object), cogged, cog·ging.
  1. to manipulate or load (dice) unfairly.
verb (used without object), cogged, cog·ging.
  1. to cheat, especially at dice.

Origin of cog

2
First recorded in 1525–35; origin uncertain

cog

3
[kog, kawg]
noun
  1. Carpentry. (in a cogged joint) the tongue in one timber, fitting into a corresponding slot in another.
  2. Mining. a cluster of timber supports for a roof.Compare chock(def 4).
verb (used with or without object), cogged, cog·ging.
  1. Carpentry. to join with a cog.

Origin of cog

3
1855–60; special use of cog1; replacing cock in same sense, special use of cock1 (in sense of projection); see coak
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for cogging

Historical Examples of cogging


British Dictionary definitions for cogging

cog

1
noun
  1. any of the teeth or projections on the rim of a gearwheel or sprocket
  2. a gearwheel, esp a small one
  3. a person or thing playing a small part in a large organization or process
verb cogs, cogging or cogged
  1. (tr) metallurgy to roll (cast-steel ingots) to convert them into blooms

Word Origin for cog

C13: of Scandinavian origin; compare Danish kogge, Swedish kugge, Norwegian kug

cog

2
verb cogs, cogging or cogged
  1. slang to cheat (in a game, esp dice), as by loading a dice

Word Origin for cog

C16: originally a dice-playing term, of unknown origin

cog

3
noun
  1. a tenon that projects from the end of a timber beam for fitting into a mortise
verb cogs, cogging or cogged
  1. (tr) to join (pieces of wood) with cogs

Word Origin for cog

C19: of uncertain origin
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for cogging

cog

n.

c.1300, "cog wheel;" late 14c., "tooth on a wheel," probably a borrowing from a Scandinavian language (cf. Norwegian kugg "cog") and cognate with Middle High German kugel "ball."

Online Etymology Dictionary, © 2010 Douglas Harper

Idioms and Phrases with cogging

cog

In addition to the idiom beginning with cog

  • cog in the wheel

also see:

  • slip a cog
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.