holocaust

Origin

The noun is derived from Middle English holocaust (“burnt offering”) [and other forms], from Anglo-Norman holocauste, Old French holocauste, olocauste (modern French holocaust), from Late Latin holocaustum, from Ancient Greek ὁλόκαυστον (holókauston), the neuter form of ὁλόκαυστος (holókaustos, “wholly burnt”), from ὅλος (hólos, “entire, whole”) (ultimately from Proto-Indo-European *solh₂- (“whole”)) + καυστός (kaustós, “burnt”) (from καίω (kaíō, “to burn, burn up”); further etymology uncertain, possibly from Proto-Indo-European *keh₂w-). By surface analysis, holo- + -caust. The verb is derived from the noun. As regards verb sense 3 (“to subject (a group of people) to a holocaust”), compare the use of genocide as a verb.