This word is from the Spanish riñon.
rinyón
kidney
bato sa rinyón
kidney stone
The native Tagalog word is bató, which may be confusing because it also means ‘rock’ or ‘stone.’
KAHULUGAN SA TAGALOG
rinyón: lamánloob ng tao o hayop na kahugis ng butó ng patani at sumasalà sa ihi
