Is it esculent?
esculent: edible, fit to be eaten
According to dictionary,com, it originates in the 1620s, from L. esculentus, from esca “food,” from PIE *ed- “to eat” (see eat). (Link and usage examples here)
I saw it a while back and hadn’t gotten around to following up on the idea that it would make a great first post from me on Words & Stuff. In ironic timing, I’ve just encountered a box of non-free airline food (helpful tip: don’t buy the tapas box on United flights, it’s not worth it) that I considered only barely “esculent” by dint of my impending hangryness. (For which see next item!)