Sentence:  Neither can the Moone be eclipſed but at her ful, and in her fartheſt<!-- page break here in the source --> poſture from the ſunne: then is ſhe proſtitute to <WSD>obnubilation</WSD>. 
Meaning of the word marked with <WSD> tags:  The (action) of (darkening) or (fact) of being darkened, as with a (cloud); (obscuration). (1610)