estible- resembles like edible, ie, somthing fit to be eaten...
Comestible is like come and eat edible food.
comestible rhymes Digestible-something fit tobe eaten are digestible
"Comestible" sounds similar to combustible( easily burned)...So comestible, something that can be burned in stomach, think it as etable.
come eat at table :P
Comestible -> Eaten food provides energy because it is Combustible in stomach.
here mes ( mess) & tible (table) ,,together it becomes mess the table with food.......