Irradiate (verb)

1. Subject (an area or object) to radiation, especially in order to sterilize it or to preserve food.
2. Shine or cast light on; illuminate.

Origin:

Late 19th century: from latin irradiat- "shone upon", from the verb irradiare, from in- "into" + radiare "to shine".

Examples:

1. The food was irradiated to kill bacteria and prolong its shelf life.
2. The tumor was irradiated with X-rays to shrink it.
3. The room was irradiated with sunlight through the window.
4. The city was irradiated with the bright lights at night.
5. The painting was irradiated with UV light to reveal hidden details.