Brown-Driver-Briggs (BDB)
H3568a
H3568a כּוּשׁ n. pr. pers. m ., gent . et terr . . 1st ‘son’ of חָם . land and people of southern Nile-valley, or Upper Egypt, exyending from Syene indefinitely to the south . כּוּשׁ is err. for כַּשׁ = Bab. Kaššu H3568b כּוּשׁ a Benjamite
Brown-Driver-Briggs Hebrew Lexicon (BDB), 1906 — public domain