Latin word encaustum comes from Ancient Greek ἐν-, Ancient Greek ἐν, Ancient Greek καίω, Ancient Greek καυστός

Detailed word origin of encaustum

Dictionary entry	Language	Definition
ἐν-	Ancient Greek (grc)
ἐν	Ancient Greek (grc)
καίω	Ancient Greek (grc)
καυστός	Ancient Greek (grc)
ἔγκαυστον	Ancient Greek (grc)
encaustum	Latin (lat)	The purple-red ink used by the later Roman emperors.