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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
PIE word *h₂ékʷeh₂ The noun is derived from aqua- (prefix meaning ‘water’) + plane (“flat or level surface”) (ultimately from Proto-Indo-European *pleh₂- (“flat”)). The verb is derived from the noun, and is analysable as aqua- + plane (“to glide; to soar; to skim a water surface”).
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Classic usage
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