Sentence:  Such <WSD>extenuation</WSD> let me begge, As in reproofe of many Tales deuis'd…I may…Finde pardon on my true submission. 
Meaning of the word marked with <WSD> tags:  The action of making (less) or (weak); and instance of this; a (weakening), (impoverishment). (Also,) (mitigation) (of (blame) or (punishment)).