Where does “rainpool” come from?

rainpool (English) comes from English Pool, from Middle English pool, from Old English pōl, from Proto-West Germanic *pōl, from Proto-Germanic pōlaz, from Proto-Indo-European bale-, from Yoruba ilé — home; house.

rainpool (English): A pool of fallen rain; a puddle

Definitions

  1. A pool of fallen rain; a puddle

Ancestry of “rainpool”, step by step

rainpool traces back through two separate lines of ancestry.

via English Pool

StepLanguageWordMeaning
1EnglishPoolOS grid ref SW6641
2Middle Englishpool—
3Old Englishpōlpool
4Proto-West Germanic*pōl—
5Proto-Germanicpōlazpool
6Proto-Indo-Europeanbale-bog, marsh
7Yorubailéhome; house

via English rain

StepLanguageWordMeaning
1EnglishrainCondensed water falling from a cloud; Any matter...
2Middle Englishreynrain water falling from a cloud
3Old Englishreġnrain
4Proto-West Germanicregnrain
5Proto-Germanicregnąrain
6Proto-Indo-EuropeanHreǵ-to flow
Every word from Yoruba ilé →Every word from Proto-Indo-European bale- →Every word from Proto-Germanic pōlaz →