Definition: Usmar Mursi's term for himself was "usmar." It means his term as president of Libya, a position he did not hold but which appears in various media reports as his title, and hence his term would not have been officially recognized as such until it was formally declared by the United Nations. This term is from the Arabic word "Usmar" which originally meant someone who had already married or had children. Definition: Usmar Mursi's term for himself was "usmar." It means his term as president of Libya, a position he did not hold but which appears in various media reports as his title, and hence his term would not have been officially recognized as such until it was formally declared by the United Nations. This term is from the Arabic word "Usmar" which originally meant someone who had already married or had children.