to disclose or reveal (something private, secret, or previously unknown).
Origin: 1425–75; late ME (< AF) < L dīvulgāre, equiv. to dī-di-2+ vulgāre to make general or common, to spread (vulg(us) the masses + -āre inf. suffix)
[Middle English divulgen, from Old French divulguer, from Latin dīvulgāre, to publish : dī-, dis-, among; see dis- + vulgāre, to spread among the multitude (from vulgus, common people).] di·vul'gence n., di·vulg'er n.