- of
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I. preposition
Etymology: Middle English, off, of, from Old English, adverb & preposition; akin to Old High German aba off, away, Latin ab from, away, Greek apo
Date: before 12th century
1. — used as a function word to indicate a point of reckoning <north of the lake> 2. a. — used as a function word to indicate origin or derivation <a man of noble birth> b. — used as a function word to indicate the cause, motive, or reason <died of flu> c. by <plays of Shakespeare> d. on the part of <very kind of you> e. occurring in <a fish of the western Atlantic> 3. — used as a function word to indicate the component material, parts, or elements or the contents <throne of gold> <cup of water> 4. a. — used as a function word to indicate the whole that includes the part denoted by the preceding word <most of the army> b. — used as a function word to indicate a whole or quantity from which a part is removed or expended <gave of his time> 5. a. relating to ; about <stories of her travels> b. in respect to <slow of speech> 6. a. — used as a function word to indicate belonging or a possessive relationship <king of England> b. — used as a function word to indicate relationship between a result determined by a function or operation and a basic entity (as an independent variable) <a function of x> <the product of two numbers> 7. — used as a function word to indicate something from which a person or thing is delivered <eased of her pain> or with respect to which someone or something is made destitute <robbed of all their belongings> 8. a. — used as a function word to indicate a particular example belonging to the class denoted by the preceding noun <the city of Rome> b. — used as a function word to indicate apposition <that fool of a husband> 9. a. — used as a function word to indicate the object of an action denoted or implied by the preceding noun <love of nature> b. — used as a function word to indicate the application of a verb <cheats him of a dollar> or of an adjective <fond of candy> 10. — used as a function word to indicate a characteristic or distinctive quality or possession <a woman of courage> 11. a. — used as a function word to indicate the position in time of an action or occurrence <died of a Monday> b. before <quarter of ten> 12. archaic on <a plague of all cowards — Shakespeare> II. verbal auxiliary Etymology: by alteration Date: circa 1800 nonstandard have — used in place of the contraction 've often in representations of uneducated speech <I could of beat them easy — Ring Lardner>
New Collegiate Dictionary. 2001.