找到了!
http://www.answers.com/topic/boss
boss
Origin: 1635
As far as we know, the first boss arrived in English-speaking North America on November 28, 1635. This is the entry for that date in the journal of John Winthrop of Massachusetts Bay: "Here arrived a small Norsey bark, of twenty-five tons, sent by the Lords Say, etc., with one Gardiner, an expert engineer or work base, and provisions of all sorts, to begin a fort at the mouth of Connecticut."
That base was the Dutch word we now know as boss. Ironically, boss Gardiner was building a fort to keep out the Dutch, who had settled New Amsterdam (later New York) to the south. But the English language readily admitted the Dutch word. And boss grew in popularity over the years, gradually taking the place of master as the latter became associated with slavery. "As I would not be a slave, so I would not be a master," in Lincoln`s later words. Boss was plain and emphatic, too, making it a useful informal substitute for words like employer, supervisor, and foreman.