Aorist active infinitive of this verb, from Homer, Iliad 18.301 (web address 1).
The sense of the verb is to eat kata\ dh=mon (in common, publicly). In the related noun dhmobo/ros (delta 438), the dh=mos element serves as the direct object of the verbal element.
Instead of this headword, Hesychius kappa1060 has katadhmomeri/sai ("to divide among the people"), otherwise unattested (and ignored by LSJ).