If you're in the AK/WA area you know that Mt. Redoubt has been erupting and causing distress. Not, obviously, Vesuvius style distress, but mild inconveniences. So for the past couple of weeks every time I read a headline or hear about it I have been thinking to myself, "hmm, Redoubt, what an unusual name for a mountain, why does it sound like a word I know?" Yesterday I came across the phrase "redoubtable matron" and the mystery was solved; redoubt is a word I know! It was an experience reminiscent of the absurdly long time it took me to figure out why my street name in alaska, jodhpur, was oddly familiar for such an odd word (A: Jodhpurs are a style of riding breeches, can also refer to the boots. Jodhpur is also a city in India.)

In case you've been equally remiss in your volcano name etymology...

REDOUBT n.
1a. a small usually temporary enclosed defensive work
1b. a defended position : protective barrier
2. a secure retreat : stronghold

REDOUBTABLE adj.
1. causing fear or alarm : formidable
2. illustrious, eminent, valiant : worthy of respect