English: 1. nickname from Old French maquerel ‘bawd’. 2. from Middle English makerel ‘mackerel’ (the fish), hence a metonymic occupational name for a fisherman or a seller of these fish. 3. Possibly also from Middle English mackerel ‘red scorch marks (on the skin)’, perhaps a descriptive nickname for someone with a noticeable birthmark.
See the Key to the Dictionary or consult the General Introduction for further explanation.