This kind of piece is really a theme and variations. Another common type of piece is the Prelude and Fugue, two movements. The first is free-form, often melodic like a short sonata, or constructed of chords; the second is made like a round, like Row, Row, Row Your Boat except WAY more complicated.
Borne [borne] as a boys' name has its root in Middle English, and Borne means stream. Borne is an alternate form of Bourne (Middle English): place name.
verb (used with object), bore or (Archaic) bare; borne or born; bearing. 1. to hold up; support: to bear the weight of the roof. 2. to hold or remain firm under (a load): The roof will not bear the strain of his weight. 3. to bring forth (young); give birth to: to bear a child.