ˈsēvə- noun
also see·wee bean or se·wee bean ˈsēwē-
Etymology: sieva, seewee, sewee of unknown origin
1. : any of several bush or weakly vining beans that are derived from a tropical American annual species ( Phaseolus lunatus ), are closely related to and sometimes classed as lima beans, and are cultivated especially in the southern United States for their small flat edible seeds — compare java bean
2. : the seed of a sieva bean — called also butter bean