lineman

Etymology

line + -man

noun

1. A person who installs and repairs overhead cables (either power or telephone); a linesman.
   In the event of a failure, by the operation of a switch signalmen at the panel boxes can set up flashing white lights on certain signalling apparatus cases spaced at approximately half-mile intervals alongside the line, in order to call the lineman. The lineman can communicate with the signalman by plugging in a hand telephone at any one of these points. 1962 August, G. M. Kichenside, “Resignalling for the Kent Coast electrification—Phase II”, in Modern Railways, page 126
2. (American football) A player who specializes in play at the line of scrimmage.
3. Someone who repairs railway tracks.