Sentence:  Such, indeed, were the primitive regulations of the greater number of monastic institutions; but the abominable and luxurious indulgences into which they afterwards <WSD>aberrated</WSD>, the page of history amply unfolds. 
Meaning of the word marked with <WSD> tags:  To go astray; to diverge; to deviate (from); deviate from. (mid 18th century)<ref name=SOED>(page=4)</ref>