Bible Dictionaries
Sea Legs

Webster's Dictionary

Legs able to maintain their possessor upright in stormy weather at sea, that is, ability stand or walk steadily on deck when a vessel is rolling or pitching in a rough sea.

Bibliography Information
Webster, Noah. Entry for 'Sea Legs'. Noah Webster's American Dictionary. https://www.studylight.org/​dictionaries/​eng/​web/​s/sea-legs.html. 1828.