The etymology of "caraway" is unclear. Caraway has been called by many names in different regions, with names deriving from the Latin cuminum (cumin), the Greek karon (again, cumin), which was adapted into Latin as carum (now meaning caraway), and the Sanskrit karavi, sometimes translated as "caraway", but other times understood to mean "fennel". English use of the term caraway dates to at least 1440, possibly having Arabic origin.
The plant is similar in appearance to other members of the carrot family, with finely divided, feathery leaves with thread-like divisions, growing on 20–30 cm (8–12 in) stems. The main flower stem is 30–60 cm (12–24 in) tall, with small white or pink flowers in compound umbels composed of 5–16 unequal rays 1–6 cm (0.4–2.4 in) long. Caraway fruits, informally called seeds, are smooth, crescent-shaped, laterally compressed achenes, around 3 mm (1⁄8 in) long, with five pale ridges and a distinctive pleasant smell when crushed. It flowers in June and July.
Caraway seeds are 10% water, 50% carbohydrates, 20% protein, and 15% fat (table). In a 100 grams (3.5 oz) reference amount, caraway seeds are a rich source (20% or more of the Daily Value, DV) of protein, B vitamins (24–33% DV), vitamin C (25% DV), and several dietary minerals, especially iron (125% DV), phosphorus (81% DV), and zinc (58% DV) (table).