journeyman

The journey in journeyman refers to a sense of the familiar word not often used anymore: "a day's labor." This sense of journey was first used in the 14th century. When journeyman appeared the following century, it originally referred to a person who, having learned a handicraft or trade through an apprenticeship, worked for daily wages. In the 16th century, journeyman picked up a figurative (and mainly deprecatory) sense; namely, "one who drudges for another." These days, however, journeyman has little to do with drudgery, and lots to do with knowing a trade inside out.