/ Dictionary / Index N non possumus*: Meaning and Definition of Find definitions for: non pos•su•mus Pronunciation: (nōn pō'soo-moos" Eng. non pos'&schwa-m&schwas), [key] — Latin. Latin. we cannot. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. nonpositive nonpracticing Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language