befriending benderender biddi-biddi biddy-biddy bird-ringer breddenberg defriending degendering dereddening derendering derendingen diy-gid-biy eigenenergy engendering engeneering engineering fedderingen ferrybridge fire-engine free-riding friedberger friedenberg gender-free gengineered ginger-beer greenenergy greenfinger greenifying greifenberg in-breeding indiffering indignified ingendering jerryrigged ngiri-ngiri niederegger niedernberg re-edifying re-engineer rebeginning red-berried redefending regendering reigning-in rejiggering rereferring rerendering ridgy-didge rigidifying ring-binder ring-finger ringgenberg