Where does “seasickness” come from?

Seasickness derives from Middle English seasicknesse, from Old English sēocnes, from Proto-Germanic -inassuz, ultimately from Proto-Germanic -inōną meaning to be sick.

seasickness (English): Nausea, dizziness etc caused by the motion of a...

Definitions

  1. Nausea, dizziness etc caused by the motion of a...

Ancestry of “seasickness”, step by step

seasickness traces back through two separate lines of ancestry.

via English Ness

StepLanguageWordMeaning
1EnglishNessAn Ulster princess and the mother of Conchobar mac Nessa and Findchoem in the Ulster Cycle of Irish mythology. Daughter of Eochaid Sálbuide. Also the mother of Cormac Cond Longas by incest with Conchobar mac Nessa
2Middle Englishnesse
3Old Englishnæsnot, not at all; not; first/third-person singular...
4Proto-Germanicnasjąfoothill; headland; cape
5Proto-Indo-Europeannéh₂snose

via English seasick

StepLanguageWordMeaning
1EnglishseasickSuffering from sickness, nausea or dizziness due...
2Middle Englishsee seke
Every word from Proto-Indo-European néh₂sEvery word from Proto-Germanic nasjąEvery word from Old English næs