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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Learned borrowing from Latin orca (“tun, cask; whale”), see there for more. Although the origin is obscure, the sometimes-cited association with orcus (“underworld”) is folk-etymology. Doublet of orc.
killer whale, killer, grampus, sea wolf, Orcinus orca
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Classic usage
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