Etymology-wise, the name Panthalassa is to sea
as what name is to earth ?
Etymology, Etymology, and more Etymology
as well as grammar, usage, euphemism, slang, jargon, semantics (meaning), linguistics, neologism, idiom, word origin, syntax, dialect, lexicon (vocabulary), diction, pidgin, synonym, antonym, homonym, cant, argot, lingo, and redundancy.

The critically-acclaimed board game
MooT
consists of tough questions about the nuances of the English language.
Answer:
Pangaea
The name of the Paleozoic landmass that contained all the
earth's continents is Pangaea , which derives
from the Greek pan , all, and
gaia , earth.
The name
for the universal sea that surrounded Pangaea is Panthalassa , which derives from the Greek
thalassa , sea.
The
word Pangaea is first attested to in the 1920 edition of
Alfred Wegener's Die Entstehung der Kontinente und
Ozeane .
Please note that these are draft questions for the board game MooT.
If you spot an error or disagree with anything I've said here,
please let me know and I'll fix it.
(the Mootguy)
Feedback
Ah, you're too kind.... I figured this out fairly easily.
Now, if you'd asked what name is to sea as Pangaea is to earth, I'd have
drowned. ? Shane McCune
x-coastwords_yahoo.ca
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Too easy. It would be better if you turned the question
around.
x-gfelton_mediamonitors.org
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