glawkous fixes two things at once
composedTwo of the word's problems answered at once, the vowel and the ending, in a single spelling.
heard asglawkous
spelledglaucous
saidGLAW-kus
The word is glaucous.
The aw and the k are two separate corrections, each defensible on its own. Together they leave a word with none of its Greek left in it. Both letters they replace, the au and the c, came through Latin untouched from glaukos and are the reason the word looks the way it does.
The other five