forteach/fɔː(ɹ)ˈtiːt͡ʃ/forteach means to unteach; contradict; misteach.forteach is pronounced /fɔː(ɹ)ˈtiːt͡ʃ/.EtymologyFrom for- + teach.verbTo unteach; contradict; misteach.“The sacred thinges, and holy heasts foretaught.”