On the other hand, Donald Knuth asserts that "aloof" is "aloof", that is, has no neighboring word differing only by one letter.
Another use is to construct minimal word ladders, where a single letter changes on each step. But then, he didn't list "kloof"!
Three of those words appear on this list. If the word "Arepo" is taken as a proper name, it may be translated as "Arepo, the sower, delays the wheel with his work", or possibly "Arepo, the sower, holds the wheel at work".