Simple past tense and past participle of risk.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "risked" in a sentence
"This, of course, being the same unfortunate child who Palin risked by flying to Texas and back (with water broken) and then driving a long distance back home, and not bothering to stop at a hospital to see if all was OK."
"It added the word "risked" - as in condoms "risked aggravating the problems" - to the version on the Vatican website on Wednesday."
"If he lost the bet, McCain risked 1) being identified with a massive unpopular federal spending program, 2) being seen as political show-boater who inserted politics into an otherwise orderly process and 3) a candidate who would rather not debate Barack Obama."