It had become our habit for me to mispronounce Featherstonhaugh as Feather-stone-huff instead of Fanshaw, and for him to call me Strongarm instead of Armstrong.
Featherstonhaugh /ˈfænʃɔː/ FAN-shaw (also spelt Fetherstonhaugh and Featherstonehaugh) is an English surname. The name comes from Featherstonhaugh in Northumberland, from the Old English feðere, 'feather', stān, 'stone', and healh, 'corner'.