forfend UK /fɔːˈfɛnd/US /fɔɹˈfɛnd/verb 1forms 3phrases 1 verb1 •(no longer used) To prohibit; to forbid; to avert.What? Multi-posting? Usenet Gods forfend! — 2008 formsforfended · forfending · forfends Phrases with forfend God forfendDon't let it be.