Definition of "krazy"

I am almoste krazy tew hav a Nufoundland dog.

1876, Josh Billings, Josh Billings: His Works, Complete, page 99

I found out on my second day on the road training that maybe these folks weren't making this stuff up—maybe I was krazy!

2013, Kawan P. Sheppard, You're Driving Me Krazy, page 14

I met him at work which was fine because I wasn't looking at him seriously—then one day he said he was krazy about me.

2016, Yolanda Hamilton, My Paperback Book, page 44

My personal favorite Wallace Wood/Topps Chewing Gum project was Krazy Little Comics.

2018, The Life and Legend of Wallace Wood: Volume 2, page 26