Family name origins & meanings
- English : habitational name of Norman origin from Caien, France (earlier recorded as Cahou, 1195), a lost place near Boulogne-sur-Mer in northern France.
- English : habitational name from Kew in Greater London (earlier Cayho, 1327), which is probably named with Old English cǣg ‘key’ (used here in the sense ‘projecting land’) + hōh ‘hill spur’.