Sentence:  If thou doſt marry, Ile giue thee / This plague to thy dowry: / Be thou as chaſte as yce, as pure as ſnowe, / Thou ſhalt not ſcape <WSD>calumny</WSD>, to a Nunnery goe. 
Meaning of the word marked with <WSD> tags:  Falsifications or misrepresentations intended to disparage or discredit another.