edo

Edo, edere, edidi, editum is third conjugation, e plus do, so the sense is giving out: publishing a book, issuing an edict, uttering a cry, bringing forth young. The reduplicated perfect edidi is the giveaway that do is inside it.

Now the trap, and it is a real one. There is a second edo, edere or esse, edi, esum, "to eat", an old athematic verb that shares the present infinitive edere and the third singular edit. Terra fructus edit is the earth producing fruit; a hungry man edit too, and only sense decides. The eating verb also has the alternative forms est and estis, which are indistinguishable from sum. Editio, editor and edict all come from the publishing verb; edible and comestible come from the eating one.