Where does “diarrea” come from?

diarrea (Catalan) comes from Late Latin diarrhoea, from Ancient Greek διάρροια, from Ancient Greek διά, from Proto-Indo-European dwís, from Proto-Indo-European dwóh₁ — two.

diarrea (Catalan): diarrhea

Definitions

diarrhea

Ancestry of “diarrea”, step by step

Step	Language	Word	Meaning
1	Late Latin	diarrhoea	diarrhoea
2	Ancient Greek	διάρροια	flowing through, diarrhoea
3	Ancient Greek	διά	throughout
4	Proto-Indo-European	dwís	twice, doubly; in two
5	Proto-Indo-European	dwóh₁	two

Every word from Proto-Indo-European dwóh₁ →Every word from Proto-Indo-European dwís →Every word from Ancient Greek διά →