... The wants of a person, ex.  He cannot supply the wants (rûba) of his family, that is, things of which they stand in need and which they rely on him to procure;... As a proper name, the word designates the poet Abû Muhammad Rûba Ibn Abi 'sh-Shàthà Abd Allah Ibn Rûba. (Ibn Khallikan's Biographical Dictionary, v.1, 1843)