Sentence:  So popular did this volume become, as to pass through eight successive editions in the reign of Elizabeth; and it has lately been revived, under every editorial advantage, by the joint care of Sir Egerton Brydges and Mr. Haslewood, whose taste and accuracy need not my <WSD>approof</WSD>. 
Meaning of the word marked with <WSD> tags:  trial; proof; testimony; affirmation.