Bible Dictionaries
Non Compos Mentis

Webster's Dictionary

Not of sound mind; not having the regular use of reason; hence, also, as a noun, an idiot; a lunatic; one devoid of reason, either by nature or from accident.

Bibliography Information
Webster, Noah. Entry for 'Non Compos Mentis'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​n/non-compos-mentis.html. 1828.