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Classic usage
Estimated CEFR level: C2 — Proficiency
Estimated from word frequency; not an official CEFR classification.
Borrowed from Irish srath and Scottish Gaelic srath (“wide, flat river valley, strath; floor of river valley; river meadow”), both from Old Irish srath (“grass, sward; river valley; floor of river valley; river meadow”), from Proto-Celtic *stratos (“valley”), from Proto-Indo-European *str̥h₃tós (“spread; stretched”, adjective), from *sterh₃- (“to extend, spread, stretch out”). The meaning was likely influenced by a Cumbric/Pictish cognate; compare Welsh ystrad. Doublet of stratus.
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Classic usage
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