Webster’s Revised Unabridged Dictionary · 1913
Sol
Sol, n. [L.] 1. The sun.
2. (Alchem.) Gold; — so called from its brilliancy, color, and value. Chaucer.
Sol (sōl; 277), n. [It.] (Mus.) (a) A syllable applied in solmization to the note G, or to the fifth tone of any diatonic scale. (b) The tone itself.
Sol, n. [See Sou.] 1. A sou.
2. A silver and gold coin of Peru. The silver sol is the unit of value, and is worth about 68 cents.