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Classic usage
Reading level: hard
Estimated CEFR level: B2 — Upper-Intermediate
Estimated from word frequency; not an official CEFR classification.
From Middle English floteren, from Old English floterian, flotorian (“to float about, flutter”), from Proto-Germanic *flutrōną, frequentative of Proto-Germanic *flutōną (“to float”), equivalent to float + -er (frequentative suffix). Cognate with West Frisian flodderje (“to flutter, beat”), Dutch flodderen (“to flutter, wave”), Low German fluttern, fluddern (“to flutter”), German flittern (“to sparkle, glitter”). More at float.
waver, flicker
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Classic usage
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