underseas

U1N1D2E1R1S1E1A1S1

adverb

Under the surface of the sea or ocean, underwater.

OriginEnglish seas ← Middle English under- ← Old English under- →
Scrabble 10
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Meanings

adverbunderseas (not comparable)
  1. not comparableUnder the surface of the sea or ocean, underwater.

Origin

  1. Proto-Indo-European*h₁én
  2. Proto-Indo-European*h₁entér
  3. Proto-Indo-European*h₂én
  4. Proto-Indo-European*dʰeh₁-?
  5. Proto-Indo-European*(H)n̥dʰí
  6. Proto-Indo-European*(H)n̥dʰér
  7. Proto-Germanic*under
  8. Proto-West Germanic*undar
  9. Old Englishunder-
  10. Middle Englishunder-
  11. Englishunder-
  12. Englishseas
  13. Englishunderseas

From under- + seas.

Full word history & related roots →
Cite this entry
APA

underseas. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/underseas

MLA

“underseas.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/underseas. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “underseas,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/underseas.

Source: underseas on Wiktionary, CC BY-SA 4.0.