[1855–60; ‹ G Bock, Bockbier lit., buck beer, perh. by misdivision of Eimbecker Bier (as if ein Bockbier one Bockbier) beer of Eimbeck in Lower Saxony, Germany]This word is first recorded in the period 1855–60. Other words that entered Englishat around the same time include: boilerplate, lavabo, output, pickup, specialist