Sentence:  There is nothing he seemed to be more carefull of than of his honesty, and observe a kinde of decencie of his person, and orderly decorum in his habits, were it on foot or on horsebacke. He was exceeding <WSD>nice</WSD> in performing his word or promise. 
Meaning of the word marked with <WSD> tags:  Particular in one's conduct; scrupulous, painstaking; choosy. (from 14th c.)