Ren.
rēnēs
The renal artery - "renal" being the Latin word for kidney.
Renal vein ( latin: vena renalis)
It is a scan of one's two kidneys, to show their functionality. It the scans are equal, then the functionality of the kidney's is equal. If one kidney is damaged in any way then then scans will not be equal. 'NB 'Nephro=' is from the Latin for 'Kidney'.
Jade was not in common use in Rome and no single word describes it. The nearest translation seems to be "lapis nephriticus"which means Kidney Stone (it was once thought jade was good for the kidneys)
NEPHRO, NEPHR - it means something related to the kidneys
The renal artery - "renal" being the Latin word for kidney.
Because of the Latin roots in the word ology means study of and nephro means related to kidneys
The organ was called a kidney first. The kidney bean is called so because it is shaped like a kidney, the organ.
An accessory kidney is an "extra" kidney.
Kidney stones. Kidney failure.
Kidney failure and kidney rejection can still remain after kidney transplant.