LATIN DICTIONARYLexicon Latīnum
proper noun

Siphnus

Meaning

  1. one of the Cyclades

Siphnus (-os), i, f.,
I. one of the Cyclades, now Sifano, Mel. 2, 7; Plin. 4, 12, 22, § 66; 36, 22, 44, § 159.—Hence, Siphnĭus, a, um, adj., Siphnian: lapis, Plin. 36, 22, 44, § 159.

Quick answers

What does Siphnus mean in Latin?
Siphnus, a proper noun, means “one of the Cyclades”.