Brendan, the POH for my 1963 Beechcraft 23 always calls the electric fuel pump the boost pump. It does this in the normal and the emergency sections of the manual. In the event of engine failure BOOST PUMP ON and change tank is first in the list.
The engine pump can supply enough fuel pressure at all times unless there is a mechanical pump failure, vapour lock, partial blockage or air in the system due to a dry tank selected, the BOOST pump can over come these issues.
I will continue to call the secondary, electric, backup, other pump the BOOST pump in any aircraft I fly. Unless it is an iS rotax, then it is pump A and pump B.