An ox-herd is a person who watches over a herd of oxen; in the same way a shepherd watches over sheep.
Bob is a variant of the Catalan name Bobe. It comes from the Catalan "bover" meaning "oxherd" or "cowherd" and was an occupational name for a herdsman.
He was friends with the other greek Kings involved in the Trojan War -- Nestor, Menelaus, Agamemnon, Achilles, Ajax.....etc. Odysseus was friends with his shipmates -- Eurylochos, Polites, Elpenor. Athena is his patron-goddess and aids him with her powers. His servants love him -- the nursemaid, Eurykleia, Philoitios the oxherd and the swineherd Eumaios.