تحفة النظار في غرايب الامصار وعجايب الاسفار 13.74.1

13.74.1

The ships of China are of three kinds: the large ones are called junks (junūk), singular junk (with velar jim with u, and nun without a vowel); the medium ones are called zaw (with a after the za, and waw); and the small ones, each called kakam (with two kafs with a). A large ship of these has twelve sails, or fewer down to three. Their sails are made of bamboo rods woven like mats; they are never lowered, and they turn them according to the direction of the wind, and when they anchor they leave them standing in the wind.