Rachi-/-rrhachis
Greek; spine
Re-
Latin; again
Ren-
Latin; kidney
Rhin-/-rhine/-rrhine
Greek; nose
Rhynch-
Greek; beak, snout
Rostr-
Latin; jaw, beak
-rrhagia
Greek; flow
-rrhaphy
Greek; suture, sewing
-rrhea/-rrhoea
Greek; flow, discharge
-rrhexis
Greek; rupture, splitting, break