The Collaborative International Dictionary
Ethiops \E"thi*ops\n. [NL. See Ethiop.] (Old Chem.) A black substance; -- formerly applied to various preparations of a black or very dark color. [Written also [AE]thiops.] [Obs.]
Ethiops martial (Old Chem.), black oxide of iron.
Ethiops mineral (Old Chem.), black sulphide of mercury, obtained by triturating mercury with sulphur.
Ethiops per se (Old Chem.), mercury in finely divided state, having the appearance of a dark powder, obtained by shaking it up or by exposure to the air.
Wiktionary
n. (alternative form of aethiops English)
Usage examples of "ethiops".
As usual, they were a mix of all races, though with a distinct Asian and African cast, here: Ethiops dark as night and brawny Nubians even darker, and fiat-faced fair-skinned Circassians and Avars and other sinewy northern folk, and some who might have been Persians or Indians, and even a sullen yellow-haired man who could have been a Briton or Teuton.