suspect

sus·pect

1. To surmise to be true or probable; imagine: I suspect they are very disappointed.
2. To have doubts about; distrust: I suspect his motives.
3. To think (a person) guilty without proof: The police suspect her of murder.

Origin: Middle English suspecten, from Old French suspecter, from Latin suspectāre, frequentative of suspicere, to look up at, suspect : su-, sub-, from below; see sub-  + specere, to look at; see spek- in Indo-European roots.