Where does “dysmenorrhea” come from?

Dysmenorrhea comes from English dys- and English menorrhea, from Ancient Greek δυσ- (difficult) and ῥοία (flow), ultimately from Proto-Indo-European srew- (to flow).

dysmenorrhea (English): Painful menstruation

Definitions

Painful menstruation

Ancestry of “dysmenorrhea”, step by step

Step	Language	Word	Meaning
1	English	-rrhea	flowing
2	Ancient Greek	ῥοία	flow, flux
3	Ancient Greek	ῥέω	I flow, stream, run, gush; I let flow, pour; I...
4	Proto-Indo-European	srew-	to flow, stream
5	Proto-Indo-European	ser-	to flow; to guard; to bind, to tie together

Words derived from “dysmenorrhea”

dysmenorrheal
dysmenorrheic

Every word from Proto-Indo-European ser- →Every word from Proto-Indo-European srew- →Every word from Ancient Greek ῥέω →