Where does “ethnomasochistic” come from?

ethnomasochistic (English) comes from English ethno-, from Ancient Greek ἔθνος, from Ancient Greek ἔθω, from Proto-Indo-European swe-dʰh₁-, from Proto-Indo-European dʰeh₁- — to do, put, place.

ethnomasochistic (English): self-loathing on the grounds of one's own race

Definitions

self-loathing on the grounds of one's own race

Ancestry of “ethnomasochistic”, step by step

Step	Language	Word	Meaning
1	English	ethno-	race; ethnicity
2	Ancient Greek	ἔθνος	group of people: tribe, family; group of animals:...
3	Ancient Greek	ἔθω	I am accustomed, I tend to
4	Proto-Indo-European	swe-dʰh₁-	—
5	Proto-Indo-European	dʰeh₁-	to do, put, place

Every word from Proto-Indo-European dʰeh₁- →Every word from Proto-Indo-European swe-dʰh₁- →Every word from English ethno- →