What does porthmos mean in Latin?

porthmos, a noun, means “a strait”.

noun

porthmos

porthmos, i, m.,= πορθμός,

I. a strait (pure Lat. fretum), Plin. 3, 5, 10, § 74.

Porthmos, i, f.,

I. a town of Eubœa, Plin. 4, 12, 21, § 64.