from The American Heritage® Dictionary of the English Language, 5th Edition.

  • preposition Derived or coming from; originating at or from.
  • preposition Caused by; resulting from.
  • preposition Away from; at a distance from.
  • preposition So as to be separated or relieved from.
  • preposition From the total or group comprising.
  • preposition Composed or made from.
  • preposition Associated with or adhering to.
  • preposition Belonging or connected to.
  • preposition Possessing; having.
  • preposition On one's part.
  • preposition Containing or carrying.
  • preposition Specified as; named or called.
  • preposition Centering on; directed toward.
  • preposition Produced by; issuing from.
  • preposition Characterized or identified by.
  • preposition With reference to; about.
  • preposition In respect to.
  • preposition Set aside for; taken up by.
  • preposition Before; until.
  • preposition During or on a specified time.
  • preposition By.
  • preposition Used to indicate an appositive.
  • preposition Archaic On.

from The Century Dictionary.

  • Off.
  • A prefix, being of, off, in composition. See etymology.
  • An assimilated form of the prefix ob- before f-. See ob-.
  • noun An abbreviation of Order of Friars Minor.
  • noun Abbreviations of official;
  • noun of officinal.
  • A word primarily expressing the idea of literal departure away from or out of a place or position.
  • From; off; from off; out of; away or away from: expressing departure from or out of a position or location: the older English of off, now differentiated from of.
  • In distance or direction from; away from; measuring from: noting relative position in space or time: as, the current carried the brig just clear of the island; Switzerland is north of Italy; within an hour of his death; upward of a year.
  • From, by intervention, severance, removal, or riddance, as by restraining, debarring, depriving, divesting, defrauding, delivering, acquitting, or healing: as, to rob a man of his money; to cure one of a fever; to break one of a habit.
  • From.
  • Noting substance or material: as, a crown of gold; a rod of iron.
  • Noting cause, reason, motive, or occasion.
  • With verbs of sense, noting the presence of some quality, characteristic, or condition: as, the fields smell of new-mown hay; the sauce tastes of wine.
  • From among: a partitive use.
  • Out of: noting subtraction, separation, or selection from an aggregate; also, having reference to the whole of an aggregate taken distributively: as, one of many; five of them were captured; of all days in the year the most unlucky; there were ten of us.
  • From being (something else); instead of: noting change or passage from one state to another.
  • From: noting an initial point of time.
  • On; in; in the course of: noting time: as, of an evening; of a holiday; of old; of late.
  • During; throughout; for: noting a period of time.
  • In: noting position, condition, or state.
  • On; in; at: noting an object of thought.
  • Concerning; in regard to; relating to; about: as, short of money; in fear of their lives; barren of results; swift of foot; innocent of the crime; regardless of his health; ignorant of mathematics; what of that? to talk of peace; I know not what to think of him; beware of the dog!
  • Belonging to; pertaining to; possessed by: as, the prerogative of the king; the thickness of the wall; the blue of the sky.
  • Belonging to as a part or an appurtenance: as, the leg of a chair; the top of a mountain; the hilt of a sword.


from The American Heritage® Dictionary of the English Language, 4th Edition

[Middle English, from Old English; see apo- in Indo-European roots.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

From Middle English of, from Old English of ("of, from"), an unstressed form of af, æf ("from, off, away"), from Proto-Germanic *ab (“from”), from Proto-Indo-European *h₂epo (“from, off, back”). Cognate with Scots of, af ("off, away"), West Frisian af, ôf ("off, away"), Dutch af ("off, from"), Low German af ("off, from"), German ab ("off, from"), Danish af ("of"), Swedish av ("of"), Icelandic af ("of"), Gothic 𐌰𐍆 (af, "of, from"); and with Latin ab ("of, from, by"). Compare off.


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