S.J. One of my first rules of life is "there is an exception to every rule", and this is one of them. To the vast majority of the population "berm" is not an obscure word, as the vast majority of the posters here have tried to tell you. In fact it has many different uses in many walks of life - flood control, city planning, mining, earth retention, noise attenuation, stream rehabillitation. Why can't you just let go of the fact that "you know everything" and accept what people are trying to tell you once in awhile?
You may be right JLM, but anecdotal evidence holds no water with me. To me, the opinion of Reader’s Digest and Microsoft Word carries much more weight than anecdotal experience of some posters here (however true that may be).
Anyway, did you try to see if your word processor recognizes the word ‘berm’? My guess is that it doesn’t.