Thanks to Mental Floss for highlighting our dictionary of improbable words as one of six alternative references one's bookshelf needs. Chris Stokel-Walker writes:
How many words do you know that are either all consonants or all vowels? Craig Conley trawled the English language and found 4000 examples gathered together in Wye’s Dictionary of Improbable Words
. From B-Z (for the consonant-only section, beginning with "b’chtsch”) and A,E,I,O,U and Y (for the vowel-only section, starting with "a i-eee ai-eeee”), there’s proof that sometimes our language doesn’t quite make sense, and that it’s possible to form words without some of our alphabet’s most important letters.
Read the full text here: http://mentalfloss.com/article/51779/6-alternative-dictionaries-your-bookshelf-needs#ixzz2aEHjd8bd