ethiops

from The Century Dictionary.

• noun See æthiops.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Old Chem.), obsolete A black substance; -- formerly applied to various preparations of a black or very dark color.
• noun (Old Chem.) black oxide of iron.
• noun (Old Chem.) black sulphide of mercury, obtained by triturating mercury with sulphur.
• noun (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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Alternative form of aethiops.