Answer: motorize

AnswerCrossword Clue
MOTORIZEMake easier to use, in a way
MOTORIZEAdd an engine to
MOTORIZEMake more powerful, as a wheelchair
motorizeEquip (troops) with motor transportation
motorizeto provide with motors, also MOTORISE
motorizeEquip (a vehicle or device) with a motor to operate or propel it