I'm going to be the huge English nerd here, given that... I'm an English major!
Circumvallate: {adj} Surrounded by or as if by a rampart.
Sanguine: {adj} 1. Cheerfully optimistic, hopeful, or confident. 2. Having blood as the predominating humor. 3. Reddish; ruddy.
Cornucopia: {n} A horn containing food, drink, etc., in endless supply, said to have been a horn of the goat Amalthaea.
Pontoon: {n} A boat or some other floating structure used as one of the supports for a temporary bridge over a river.
Now for a sentence then, yes?
The sanguine captain of the pontoon looked out over the water; despite the circumvallate waters, they still had a veritable cornucopia of supplies to deliver to the mainland.
Whoot! I used all four! No stumping me! :3 Good luck in your quest, dear friend!