 "κ Persei" (Latinised to "Kappa Persei") is the system's Bayer designation.The designations of the two constituents as "Kappa Persei A" and "B", and those of "A's" components - "Kappa Persei Aa" and "Ab" - derive from the convention used by the Washington Multiplicity Catalog (WMC) for multiple star systems, and adopted by the International Astronomical Union (IAU).The traditional name comes from the Arabic مِعْصَم‎ "miʽṣam" 'wrist'.