Grace me no grace, nor uncle me no uncle; I am no traitors uncle; and that word ''grace'' in an ungracious mouth is but profane. The dominant literary devic...

The dominant literary device used in the extract is repetition. This is because the phrase "grace me no grace" and "uncle me no uncle" is repeated twice, emphasizing the speaker's rejection of the use of these words in their situation. The repetition also adds to the overall rhetorical effect of the passage.