M / mellum
noun

mellum

gen. melli · gender neuter · decl. 2nd
a dog's collar; N. cr
a dog's collar, Varr. R. R. 2, 9, 15 Schneid. N. cr. (al. melium and maelium).—Also, millus, i: millus collare canum venaticorum, factum ex corio confixumque clavis ferreis eminentibus adversus impetum luporum, Paul. ex Fest. p. 151 Müll.—Also written melium, mil-lus, q. v.