Where does “greuel” come from?

greuel (Middle English) comes from Old French gruel, from Medieval Latin grutellum, from Medieval Latin grutum, from Proto-Germanic grūtiz — ground material; grit.

Ancestry of “greuel”, step by step

Step	Language	Word	Meaning
1	Old French	gruel	coarse meal; > French {{m\|fr\|gruau}}
2	Medieval Latin	grutellum	—
3	Medieval Latin	grutum	flour; meal; flour, meal, used as seasoning for...
4	Proto-Germanic	grūtiz	ground material; grit

Every word from Proto-Germanic grūtiz →Every word from Medieval Latin grutum →Every word from Medieval Latin grutellum →