The 2013 list included a disproportionate set of vowel-laden words including buncombe, cerulean, dragoon, fantods, chelonian, mawkish, natter, persiflage, troglodyte and winkle.
One such study, conducted by Sarah Werning of the University of California, Berkeley, and her colleagues, is reminiscent of Aesop's fable about the hare and the tortoise with dinosaurs playing the role of the cocky lagomorph and crocodiles that of the slow but steady chelonian.