Indubitate

In*du"bi*tate (?), v. t. [L. indubitatus, p. p. of indubitare; pref. in- in + dubitare to doubt.] To bring into doubt; to cause to be doubted. [Obs.]

To conceal, or indubitate, his exigency.
Sir T. Browne.

In*du"bi*tate (?), a. [L. indubitatus; pref. in- not + dubitatus, p. p. of dubitare to doubt.] Not questioned or doubtful; evident; certain. [Obs.] Bacon.