"half, moderate," Italian mezzo, literally "middle," from Latin medius (from PIE root *medhyo- "middle"). Used in combinations such as mezzo-soprano (music, 1753); mezzo-rilievo (scuplture, 1590s); mezzotint (engraving, 1738).
It is the hypothetical source of/evidence for its existence is provided by: Sanskrit madhyah, Avestan madiya- "middle," Greek mesos, Latin medius "in the middle, between; from the middle," Gothic midjis, Old English midd "middle," Old Church Slavonic medzu "between," Armenian mej "middle."
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Definitions of mezzotint
print produced by an engraving that has been scraped to represent light or shade;