Spellchecking Is Never Enough, # 48

This book featured on 26 March, and I wondered whether more mangles would occur. This is unusual:

Link: Amazon.co.uk, L. J. Charles, A Touch of Ice (p. 202)

OED observes that glassier was one of several spelling variants for glazier in Middle English, although the sole example listed shows it used as an alternative to glazer, meaning a polishing tool or wheel, in 1688. I checked glassier in Merriam-Webster in case it was a usage specific to the USA, but it occurs only as a comparative form under the entry glassy.