figurative. To shake (in mind), cause to waver.

= misgive, v. (So also give, v.). Obsolete. rare.

transitive (causatively). To shake (a resolve, an opinion). Obsolete.

transitive. To render uncertain.

transitive. To distrust; to discredit.

transitive. To deprive of the understanding of.

causative. To excite scruples in (a person), to cause to feel scruples. Obsolete.

transitive. To cause to waver; to shake or unsettle (a person, or a person's resolution, faith, etc.). Obsolete.

figurative. To throw doubt upon (a doctrine). Obsolete.

figurative. To unsettle; to render uncertain or doubtful.

transitive. To possess with scruples.

To unsettle (opinions, etc.), to render uncertain or doubtful. Also with personal object.

(un-, prefix2 affix 1a.)

To force out of a settled condition; to deprive of fixity or quiet. persons (in respect of beliefs, etc.).

to keep (a person) guessing: to keep in a state of uncertainty. colloquial (originally U.S.).