The OED entry for happen notes the following:
In Middle English fel it hap meant "it happened."
A search for the phrase reveals this OED entry and nothing else relevant. It is not clear how one would use this phrase in a conversational context. For example, could it be used in a sentence like the following?
Fel it hap that the man did dege.
It happened that the man died.
Or, was it used as an exclamation?
The man did dege! Fel it hap!
*All "Middle-English-y" example sentences here are of my own making, and I know nothing about Middle English.
How was this phrase used? Can you provide any notable examples from medieval works?
Thanks in advance!