The term 'cashmere, e.g.' can be solved by the four-letter word 'WOOL'. WOOL is a type of fiber that is obtained from the fur of animals such as sheep, goats, and rabbits. It is often used to make clothing and other textiles. Cashmere is a type of WOOL that is made from the fur of cashmere goats, which are native to the Himalayan region. It is known for its softness and warmth, making it a popular choice for sweaters, scarves, and other garments.