Sentence:  The Assassines, a nation depending of Phœnicia, are esteemed among the Mahometistsnb.... And thus was our Earle "Raymond" of "Tripoli" murthered or <WSD>assassinated</WSD> (this word is borrowed from their name) in the middest of his Citie, during the time of our warres in the holy landnb.... 
Meaning of the word marked with <WSD> tags:  To murder someone, especially an important person, by a sudden or obscure attack, especially for ideological or political reasons. (from 17th c.)