[non pos-uh-muh s; Latin nohn poh-soo-moo s]
a statement that something cannot be done: The Pope would not accept a non possumus from the king.
Origin of non possumus
< Latin: literally, we cannot
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for non possumus
Historical Examples of non possumus
Against all representations Pius IX obstinately maintained his reply of "non-possumus."History of the Jews, Vol. V (of 6)