tap / space
Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from New Latin pterygoīdēs, from Ancient Greek πτερῠγοειδής (pterŭgoeidḗs, “like a wing”), from πτέρῠξ (ptérŭx, “a wing”) + -ο- (-o-) + -ειδής (-eidḗs, “-like, -oid”).
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tap / space
Classic usage
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