lūfa

Arabic lūfa referred to the fibrous interior of the Luffa aegyptiaca, a tropical vine in the cucumber family whose mature fruit, when dried and stripped of its skin and seeds, reveals a sponge-like network of interlocking fibers. The plant is native to tropical Asia and was cultivated extensively in Egypt, which is why the Arabic name identified it as Egyptian. The dried fiber sponge was used throughout the medieval Arab world for bathing and household scrubbing.

The Luffa plant spread through Arab trade routes from South Asia to the Middle East and North Africa by the 11th century CE. It appears in Arabic medical texts as a bath implement and in agricultural manuals as a cultivated crop. The botanical name Luffa preserves the Arabic lūfa directly — taxonomists adopted the Arabic name when they classified the plant in the 18th century.

European colonists and traders encountered the loofah in the 16th and 17th centuries through North Africa and the Levant. The English form loofah appears in the 19th century in colonial-era texts describing the plant's use in India, Egypt, and the Caribbean, where it had spread. By the late 19th century loofah sponges were being sold in English pharmacies as bath products.

The loofah is still widely cultivated for commercial production — primarily in Japan, China, and Egypt — and has become a common bathrooms fixture globally. A gourd whose Arabic name came from its Egyptian cultivation is now grown worldwide and sold in packaging that rarely mentions either the plant or the history.