The Collaborative International Dictionary of English v.0.48:
distrust \dis*trust"\, v. t. [imp. & p. p. Distrusted; p. pr.
& vb. n. Distrusting.] [Cf. Mistrust.]
To feel absence of trust in; not to confide in or rely upon;
to deem of questionable sufficiency or reality; to doubt; to
be suspicious of; to mistrust.
Not distrusting my health. --2 Mac. ix.
To distrust the justice of your cause. --Dryden.
He that requireth the oath doth distrust that other.
Of all afraid,
Distrusting all, a wise, suspicious maid. --Collins.
Note: Mistrust has been almost wholly driven out by distrust.
--T. L. K. Oliphant.