rainout (English) comes from English rain, from Middle English reyn, from Old English reġn, from Proto-West Germanic regn, from Proto-Germanic regną, from Proto-Indo-European Hreǵ- — to flow.
rainout (English): Something which has been cancelled due to...
Definitions
Something which has been cancelled due to...
Ancestry of “rainout”, step by step
rainout traces back through two separate lines of ancestry.