Sir Reverence

Human excrement, a t--d.
a corruption of the old phrase, save your reverence , a sort of apology for alluding to anything likely to shock one's sense of decency. Latinsalvâ reverentiâSee Shakspeare's Romeo and Juliet, act i. scene iv. From this it came to mean the thing itself—human ordure generally, but sometimes other indecencies.