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Classic usage
Reading level: hard
Estimated CEFR level: C1 — Advanced
Estimated from word frequency; not an official CEFR classification.
Modification of Middle English tortou, tortu, from Old French tortüe (under the influence of Middle English turtel, turtur (“turtledove”), see Etymology 2 below), from Medieval Latin tortuca (compare Spanish tortuga), the same source of tortoise (see there for more). Displaced native Old English byrdling (See birdling).
turtleneck, polo-neck
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Classic usage
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