operate
op.er.ate \'a:p-(*-).ra-t\ vb [L operatus, pp. of operari to work, fr. oper-, opus wo]rk; akin to OE efnan to perform, Skt apas work 1: to perform a work or labor : FUNCTION 2: to produce an appropriate effect 3a: to perform an operation or series of operations 3b: to perform surgery 3c: to carry on a military or naval action or mission 1: to bring about : EFFECT 2a: to cause to function : WORK 2b: to put or keep in operation : MANAGE 3: to perform surgery on