Chay is a 4 letter English word. It's valid Words with friends word worth 11 points.
You can make 21 anagrams from letters in chay (achy).
Further than that, he Goes Into Society "in a chay and four greys with silk jackets."
Ytoma chay teque canca tecame emteguam cheheguasullorima yem iton llejosama.
In the eastern Astin-tagh a variety of wild tea (chay, mountain tea) is used by the Mongols.
Naughty Blossom was riding the horse that ought to have gone in the 'chay' to Jawleyford Court.
They went into Society, in a chay and four grays with silk jackets.
Rubanic chay abah ri apal, etc.; this obscure passage was, I think, entirely misunderstood by Brasseur.