powered
Word family
Synonym discussion
Sense: adjective/1
All four words describe devices that operate using some form of energy rather than by hand, but they differ in scope and focus. 'Powered' is the broadest term — it covers any external energy source, including electricity, gas, batteries, or solar energy. 'Motorized' is narrower: it means equipped with a motor (usually an engine that burns fuel or runs on electricity). 'Electric' is specific to devices that run on electricity alone, whether from a plug or a battery. 'Automated' shifts the focus from energy to control — it means a machine operates without constant human input (e.g. an automated gate). 'Mechanical' refers to moving parts and gears; a device can be mechanical without being powered (a manual egg beater is mechanical). For example, a 'gas-powered lawn mower' is also motorized, but a 'solar-powered garden light' is not motorized. An 'electric kettle' is powered and electric but not automated; an 'automated sprinkler system' is powered, electric, and automated at the same time.
Common collocations
Etymology
'Powered' comes from the noun 'power', which entered English from Old French 'povoir/poeir' (meaning 'to be able'), derived from Latin 'potere', a variant of 'posse' ('to be able'). The suffix '-ed' turns the noun into an adjective meaning 'having or using power'. The sense of being 'operated by a specific energy source' became common during the Industrial Revolution, when machines driven by steam, gas, or electricity replaced manual labour.