O.E. mangere, from P.Gmc. mangojan (cf. O.S. mangon, O.N. manga), from L. mango (gen. mangonis) "dealer, trader," from a noun derivative of Gk. manganon "contrivance, means of enchantment," from PIE base *mang- "to embellish, dress, trim." Used in comb. form in Eng. since at least 12c.; since 16c. chiefly with overtones of petty and disreputable. The modern verb is first recorded 1928, from the noun (but there was a verb form in O.E.). Related: Mongering.