Sentence:  DONALD O-FIHELY, a Perſon much valued among his Country-men, for his <WSD>unwearied</WSD> induſtry in matters relating to Hiſtory and Antiquity; was Born of an Antient Family in the County of "Cork" in "Ireland": [...] 
Meaning of the word marked with <WSD> tags:  Never tiring; tireless.