If someone purveys goods or services, they provide them. They have two restaurants that purvey dumplings and chicken noodle soup. = supply, sell. to supply goods, services, information etc to people (porveeir, from providere; PROVIDE)
[ (")p&r-'vA, 'p&r-" ] (transitive verb.) 14th century. From Anglo-Norman purveer, purveir et al., Old French porveeir, porveoir, from Latin prōvidēre (“to provide”). Compare provide.