sea lion (English)

Where does "sea lion" come from?

The term "sea lion" is a descriptive compound formed by combining the English words "sea," rooted in the Proto-Germanic *saiwiz, and "lion," which descends from the Ancient Greek word léōn. It was coined to describe these marine mammals due to their lion-like manes and resonant, barking roars. Historically, this pairing highlights a linguistic tradition of naming sea creatures after land animals, paralleling older terms like the Middle English "see hound."

Full etymology tree

Direct ancestors

Updated July 2026

Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris