To stop raining or to rain away; to cause rain to cease or disperse.
From Latin 'dis-' (away, apart) + 'pluviate' (to rain, from 'pluvial,' relating to rain). An extremely rare word formed by analogy with other 'dis-' verbs that reverse or undo an action.
This might be the most obscure weather-related word in English—it appears in only a handful of meteorological texts and poetic works, making it a true lexical curiosity that even most linguists haven't encountered!
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