verb (used with object), prom·ul·gat·ed, prom·ul·gat·ing.
Origin of promulgate
Word Origin for promulgate
1520s, from Latin promulgatus, past participle of promulgare "make publicly known, propose openly, publish," perhaps altered from provulgare, from pro- "forth" (see pro-) + vulgare "make public, publish." Or the second element might be from mulgere "to milk" (see milk (n.)), used metaphorically for "cause to emerge." Related: Promulgated; promulgating. The earlier verb in English was promulge (late 15c.).