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"?