Where does “dormytorye” come from?

dormytorye (Middle English) comes from Latin dormitorium, from Latin dormitorius — of or for sleeping.

Ancestry of “dormytorye”, step by step

Step	Language	Word	Meaning
1	Latin	dormitorium	a sleeping-room, dormitory
2	Latin	dormitorius	of or for sleeping

dormytorye — Etymology, Origin & Word History | Etymology Explorer