Sentence:  [...] who knows / If the scarce-<WSD>bearded</WSD> Caesar have not sent / His powerful mandate to you, ‘Do this, or this; Take in that kingdom, and enfranchise that; / Perform 't, or else we damn thee.' 
Meaning of the word marked with <WSD> tags:  ("in combination") Having a beard (or similar appendage) of a specified type.