scruples

ot noun

1. A weight of 1/288 of a pound, that is, twenty grains or one third of a dram, about 1.3 grams (symbol: ℈).
2. (by extension) A very small quantity; a particle.
3. A doubt or uncertainty concerning a matter of fact; intellectual perplexity.
4. Hesitation to act from the difficulty of determining what is right or expedient; doubt, hesitation or unwillingness due to motives of conscience.

fe’l verb

1. To question the truth of (a fact, etc.); to doubt; to hesitate to believe, to question. I do not scruple to admit that all the Earth seeth but only half of the Moon.
2. To hesitate or be reluctant to act due to considerations of conscience or expedience.
3. To excite scruples in; to cause to scruple.
4. To regard with suspicion; to question.