1745, "to charge with electricity, cause electricity to pass through;" see electric + -fy. Figurative sense recorded by 1752. Meaning "convert a factory, industry, etc., to electrical power" is by 1902. Related: Electrified; electrifying.
The news electrified us
electrify an appliance
electric
electrical
electrician
electricity
electrification
electrify
electro-
electrocardiogram
electrocute
electrocution
electrode