The snippet above is taken from The Gentleman's Magazine (London, England), Volume 53, dated, 1783. It's only when you say Quyer out loud, do you realize what the word is. It is one of the quirkiest spelled words in the English language today, choir, pronounced /ˈkwʌɪə/. Initially, quyer looks idiosyncratic and alien-looking, until you realize that the spelling is phonetic and what's more, it makes perfect sense. In addition, quyer looks English whereas the Modern English spelling of choir appears to be derived from the French choeur.
When did the present day spelling choir definitely replace that of quyer? Why wasn't the original (?), more English-looking, and more phonological qu kept?
EDIT Many thanks to @Kris who kindly pointed out my error in the comments below.
When did the present day spelling choir supersede that of quyer ?" It did? No. nGram cited by Josh demonstrates that choir always was dominant, while quyer lived a secondary existence until c.1825, when it pretty much disappeared