doubt
To be undecided about; to lack confidence in; to disbelieve, to question.
(archaic outside Scotland) To harbor suspicion about; suspect.
Rushing to the door of the church, [Robert the] Bruce met two powerful barons, [Roger de] Kirkpatrick of Closeburn, and James de Lindsay, who eagerly asked him what tidings? "Bad tidings," answered Bruce, "I doubt I have slain [John] Comyn." "Doubtest thou?" said Kirkpatrick, "I make sicker" (i.e. sure.) With these words, he and Lindsay rushed into the church, and dispatched the wounded Comyn.
(archaic) To anticipate with dread or fear; to apprehend.
Fear naught—nay, that I need not say— / But—doubt not aught from mine array. / Thou art my guest;—I pledged my word / As far as Coilantogle ford: [...]
(obsolete) To fill with fear; to affright.
(obsolete) To dread, to fear.
At last, as they more faintly wrestling lay, / Juan contrived to give an awkward blow, / And then his only garment quite gave way; / He fled, like Joseph, leaving it; but there, / I doubt, all likeness ends between the pair.
Disbelief or uncertainty (about something); a particular instance of such disbelief or uncertainty.
She was very pretty: exceedingly pretty. With a dimpled, surprised-looking, capital face; a ripe little mouth, that seemed made to be kissed—as no doubt it was; all kinds of good little dots about her chin, that melted into one another when she laughed; and the sunniest pair of eyes you ever saw in any little creature's head.
(obsolete or India) A point of uncertainty; a query.