Baltic
来自Big Physics
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wiktionary
From Latin Balticus, from Latin Balthae(“dwellers near the Baltic sea”). The ultimate origin is uncertain, but possibilities are:
etymonline
Baltic (adj.)
1580s, "pertaining to the brackish sea between the Scandinavian peninsula and Eastern Europe," from Medieval Latin Balticus, perhaps from Lithuanian baltas "white" or Scandinavian balta "belt; strait" (in reference to its narrow entranceway). In German, it is Ostsee, literally "east sea." From 1887 as the name of a language group comprising Lithuanian, Lettish, and Old Prussian.
