cush

As a verb son

is to be (to exist).

As a proper noun cush is

(biblical) the son of ham and grandson of noah, progenitor of the african peoples.

Cushite is a derived term of cush.

As adjectives the difference between cush and cushite

is that cush is excellent, very good while Cushite is pertaining to the ancient people of Horn of Africa, considered the descendants of biblical Cush.

As proper nouns the difference between cush and cushite

is that cush is the son of Ham and grandson of Noah, progenitor of the African peoples while Cushite is a member of one of the peoples of the Horn of Africa.

As a noun cush

is shortened form of cushion, the soft lip around the edge of the table that allows the balls to bounce cleanly.