(transitive) To have no confidence in (something or someone).
(transitive) To be wary, suspicious or doubtful of (something or someone).
It is most strange to report what outragious acts […] haue beene committed […] by women especially, that will runne after their husbands into all places, all companies, as Iouianus Pontanus wife did by him, follow him whether soeuer hee goes, it matters not, or vpon what businesse, rauing […] , cursing, swearing, and mistrusting euery one she sees.
(transitive) To suspect, to imagine or suppose (something) to be the case.