simple past tense and past participle of hoarsen

Of, or pertaining to, Descartes, his mathematical methods, or his philosophy, especially with regard to its emphasis on logical analysis and its mechanistic interpretation of physical nature.

An old jaded horse. / (UK, dialect, uncountable) Sea gravel mixed with sand. / (dated, slang, among students) Synonym of horse (illegitimate study aid)

A surname from Cornish.