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TOEFL BNC: 20326 COCA: 17219

cog

1 of 5

noun (1)

1
: a tooth on the rim of a wheel or gear
2
: a subordinate but integral person or part
cogged adjective

cog

2 of 5

verb (1)

cogged; cogging

intransitive verb

1
obsolete : to cheat in throwing dice
2
obsolete : deceive
3
obsolete : to use venal flattery

transitive verb

1
: to direct the fall of (dice) fraudulently
2
obsolete : wheedle

cog

3 of 5

verb (2)

cogged; cogging

transitive verb

: to connect (timbers, joists, etc.) by means of mortises and tenons

cog

4 of 5

noun (2)

: a tenon on a beam or timber

cog

5 of 5

abbreviation

cognate

Word History

Etymology

Noun (1)

Middle English cogge, of Scandinavian origin; akin to Swedish kugge cog

Verb (1)

obsolete cog a trick

Verb (2)

probably alteration of cock to cog

First Known Use

Noun (1)

13th century, in the meaning defined at sense 1

Verb (1)

1532, in the meaning defined at intransitive sense 1

Verb (2)

1823, in the meaning defined above

Noun (2)

1830, in the meaning defined above

Time Traveler
The first known use of cog was in the 13th century

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