sapphire
sap.phire \'saf-.i-(*)r\ n [ME safir, fr. OF, fr. L sapphirus, fr. Gk sappheiros, fr. He]b sappi-r, fr. Skt s'aniprivya, lit., dear to the planet Saturn, fr. S'ani Saturn + priya dear 1a: a precious stone of transparent rich blue corundum 1b: a pure variety of corundum in transparent or translucent crystals used as a gem; also : such a gem 2: a variable color averaging a deep purplish blue - sapphire aj