Etymologically, this word in its first definition comes from “glass”  and is to cover with a glaze or with glass, specifically

To cover … with a vitreous substance which is fixed by fusion

In the second meaning, “glaze” is to stare, and comes from “glare” which seems to derive from Middle Dutch or Middle Low German phrase for “grey-eyed”.  Note to self – follow up with grey eyed characters.

So – the eyes stare fixedly as the vitreous fluid boils and fixes in death.  Oh, wow.  This image will never be the same for me.  Adding the gem tag!

• 06.078 till beards blaze, and eyes glaze;

“glare, v.” OED Online. Oxford University Press, June 2015. Web. 26 July 2015.

“glaze, v.1.” OED Online. Oxford University Press, June 2015. Web. 26 July 2015.

“glaze, v.2.” OED Online. Oxford University Press, June 2015. Web. 26 July 2015.