Preassume (third-person singular simple present preassumes, present participle preassuming, simple past and past participle preassumed)

(transitive) To assume in advance; to presume.

How does its usage differ from "presume"? Are there some fields that "preassume" is usually used but not "presume"? Does the word "preassume" come from a typo of "presume"?

  • 1
    I suspect that it does (come from a typo). I've never heard of it, and googling 'preassume definition' produces 'Did you mean presume?' Jun 10 at 9:29
  • 2
    Even if you did provide a dictionary definition, there's not much research. And knowing "why" some native speakers say "Preassume" instead of "assume" is anyone's guess. It's impossible to give a definite answer to a question posed as this.
    – Mari-Lou A
    Jun 10 at 9:56
  • 2
    Isn't presuming already assuming beforehand? Isn't that how we got to presuming, by pre assuming? Jun 10 at 12:28
  • 2
    Elaborate on what? It's a nonstandard word. Possibly an eggcorn derived from pre + assume, it has the same meaning as presume.
    – Mari-Lou A
    Jun 10 at 12:28
  • 2
    "full OED" - Oxford English Dictionary. But the annual subscription is something like £150pa unless you can get free access through your educational establishment (or public library, in the UK). Jun 11 at 19:02


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