English word riparious comes from Proto-Indo-European *reyw-, and later Latin ripa (Bank (of a river). Shore (of the sea).)

Detailed word origin of riparious

Dictionary entry	Language	Definition
*reyw-	Proto-Indo-European (ine-pro)
ripa	Latin (lat)	Bank (of a river). Shore (of the sea).
riparius	Latin (lat)	That inhabits the banks of rivers; riparian.
riparious	English (eng)	Growing along the banks of rivers; riparian.

Words with the same origin as riparious