Cordage source is a term used to describe the various materials used to make rope. The crossword solutions for this term include BAST, roping, JUTE, ESPARTO, PITA, SISAL, HEMP, and RAMIE, as well as istle. BAST is a strong fiber obtained from the inner bark of certain trees, while roping is the process of making rope. JUTE is a long, soft vegetable fiber that can be spun into coarse, strong threads, while ESPARTO is a grass native to the Mediterranean region. PITA is a type of grass found in the Middle East, while SISAL is a stiff, durable fiber made from the leaves of the agave plant. HEMP is a variety of the Cannabis sativa plant, and RAMIE is a strong, glossy fiber made from the stems of a nettle plant. Lastly, istle is a fiber made from the leaves of the maguey plant.