After all, the innermost sexual longings of presidents, both living and dead, have long been the stuff of rumor and conjecture.
And it is conjecture, based on the sketchy bits of evidence we possess.
It is not a conjecture, and so many of these groups it is basically donor capture.
late 14c., "interpretation of signs and omens," from Old French conjecture "surmise, guess," or directly from Latin coniectura "conclusion, interpretation, guess, inference," literally "a casting together (of facts, etc.)," from coniectus, past participle of conicere "to throw together," from com- "together" (see com-) + iacere "to throw" (see jet (v.)). Sense of "forming of opinion without proof" is 1530s.
early 15c., from conjecture (n.). In Middle English also with a parallel conjecte (n.), conjecten (v.). Related: Conjectured; conjecturing.