ETYM French rouan; cf. Spanish roano, ruano, Italian rovano, roano.
(Used of especially horses) Having a brownish coat thickly sprinkled with white or gray.

Sheepskin tanned with sumac and colored and finished to imitate morocco

1. A soft sheepskin leather that is colored and finished to resemble morocco; used in bookbinding.
2. Horse having a roan coat.