- operate
- 1606, "to be in effect," from L. operari "to work, labor" (in L.L. "to have effect, be active, cause"), see operation. Surgical sense is first attested 1799. Meaning "to work machinery" is from 1864 in Amer.Eng. Operator is first recorded 1597, "one who performs mechanical or surgical operations." Meaning "one who carries on business shrewdly" is from 1828. Specific sense of "one who works a telephone switchboard" (1884) grew out of earlier meaning "one who works a telegraph" (1847).