Today, we’re looking at eat and…I just suddenly realized that I’m hungry.
Anyway! Eat comes from the Old English etan, which just means eat, and before that, the Proto Germanic etan and Proto Indo European ed-, to eat. Ed- is also the origin for edible, no surprises there, although edible comes to us by way of Latin rather than through straight Germanic roots.
So yes, we have two words related to food that originate from the same word and yet came to English by two very divergent paths. Because words are weird.
Tony Jebson’s page on the Origins of Old English