WOMBATS / House Elves

[Catlady (Rita Prince Winston)]

I only got an 'Acceptable'. My feelings are hurt.

What's the deal with Kreachur? In the first four books, we met Dobby
and Winky and got the idea that all House Elves have two syllable
names with "y" at the end. If that had been the rule, he would have
been named 'Kreachy' rather than than Kreachur. Were we wrong about
the rule? The next House Elf we encounter, book 6, is named Hokey.