Kaio

In the S1:E4 of the TV series The Walking Dead, there’s a scene where a man called Merle Dixon cut one of his hands off by himself. After that, he cauterized the stump in order to stop bleeding. This word cauterize¹ means “to burn body tissue to stop an injury from bleeding”. (I didn’t even know the probably corresponding Japanese word, which is 焼灼する.)

Cauterize ultimately comes from the Ancient Greek καίω (kaíō), meaning “I burn”. There are several words that have the sense related to burning and that have the part -caut- or -caus-.

caustic

One definition of this word is “able to burn organic tissue by chemical action”. This is often used in a figurative way to mean “critical” or “bitter”.

holocaust

The Holocaust is the well-known genocide of the European Jews by Nazi Germany during World War II. This word is the combination of ὅλος (hólos) meaning “whole” (cf. holistic) and καίω.