[Facts] Minnalousche
A favourite Yeats poem, for decades. I always figured: if Augusta Gregory's cat, maybe an anglicised corruption of something Irish, such as Mien na Loisce, or some equally nonsensical variant. If the cat belonged to one of the Gonnes, most likely French, in which LOUCHE means "disreputable" or "sordid", from the Latin for "cross-eyed"; thus, Little Scoundrel perhaps, or maybe even Little Cross-Eyes, since so much is made of his eyes in the poem.
Replies
There were already two threads on Minnaloushe, but the name of that particular cat seems to be a dead end, etymologially.
http://www.behindthename.com/bb/fact/35710
http://www.behindthename.com/bb/fact/4161729
http://www.behindthename.com/bb/fact/35710
http://www.behindthename.com/bb/fact/4161729