1. noun /ˈskɹuː.pəl/
Hesitation as to action from the difficulty of determining what is right or expedient; unwillingness, doubt, or hesitation proceeding from motives of conscience; to consider if something is ethical.
Paroles: I have not, my lord, deserved it. Lafeu: Yes, good faith, evry dram of it, and I will not bate thee a scruple.
2. verb /ˈskɹuː.pəl/
a) To be reluctant or to hesitate, as regards an action, on account of considerations of conscience or expedience.
We are often over-precise, scrupling to say or do those things which lawfully we may. - .
b) To regard with suspicion; to hesitate at; to question.
Men scruple at the lawfulness of a set form of divine worship. - .
Wikipedia foundation.