Origin: ME masticote, altered (infl. by mastik, mastic) < MFr < It marzacotto < Sp mezacote < Ar shabb qubṭi, Coptic alum: see Coptic
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- The mineral form of lead monoxide, PbO.
- A yellow powder, PbO, used as a pigment.
Origin: Middle English masticot, from Old French, perhaps from Old Italian marzacotto, potter's glaze (perhaps from Spanish mazacote, mortar), possibly from Arabic masḥaqūnīyā, perhaps of Greek origin.