derring-do - Google Search
1. From an early age, Skilling, the son of a sales manager for an Illinois valve company, showed the same kind of supreme self-confidence and derring-do that ...
2. What's novel here is that this is being done in a completely transparent way, whereas in the past all the discussions and verbal derring-do would have ...
3. LTHOUGH Jacques Derrida (who recently died) is hailed by Western scholars for having performed a philosophical derring-do by propounding his theory of ...
4. It takes a spot of courage to stand up tall and a bit of derring-do to rise when you fall.
It's "derring-do" ... but it shouldn't be"Derring-do" turns out to have an interesting history. It was a challenge to find, but the OED lists it as a "pseudo archaism" which originated with Chaucer, was misunderstood by Lydgate, picked up but misprinted by Spenser, and then taken up by Sir Walter Scott, and it's been "derring-do" ever since. The series of errors and misunderstandings have created a word meaning "reckless courage." If you have an OED, it's interesting reading.
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