Sentence:  LEONATO. Indeed he looks younger than he did, by the loss of a beard. / DON PEDRO. Nay, a' rubs himself with <WSD>civet</WSD>: can you smell him out by that? / CLAUDIO. That's as much as to say the sweet youth's in love. 
Meaning of the word marked with <WSD> tags:  The musky perfume produced by the animal.