Cushite in the Bible Encyclopedia - ISBE
kush'-it: Whereas kushi, is elsewhere rendered Ethiopian, in 2
Sam 18:21-32 it is rendered Cushite in the Revised Version
(British and American) (see CUSHI and compare CUSHITE WOMAN).
Its plural, which occurs in Zephaniah, Daniel and 2
Chronicles, also in the form kushiyim, in Amos, is uniformly
translated Ethiopians, following Septuagint. The other Old
Testament books use simply kush, for people as well as land.
Read More about Cushite in the Bible Encyclopedia - ISBE