Cwm. One of very few English words with no vowels. I won a massive scrabble game against (my very very competitive) mother-in-law. It was an awesome win. And you will never guess where I learned it. Ready? Here come some memories….. From one volume in a series of childhood books called….Encyclopedia Brown. HAH!! And it means valley. From Welsh, but still adopted into English. I will never forget her face as she challanged the word and went to her Oxford dictionary and there it was. Of course, you realize I was in a major doghouse after that. Good times…good times……