Word : Ultra posse nemo obligatur Origin : Latin. Meaning : One shall do what he can do to support the community. That means, nobody is obligated to do more than what he can do. Explanation : Everyone has his own level of ability to do a particular thing and one cannot expect that all will perform at same level. Word : Uno flatu Origin : Latin. Meaning : Used to criticize inconsistencies in a speech. Explanation : Some people say one thing, and in the same breath, says another thing which is contradictory.