Alpinia galanga

Alpinia galanga,[1] a plant in the ginger family, bears a rhizome used largely as an herb in Unani medicine and as a spice in Arab cuisine and Southeast Asian cookery. It is one of four plants known as “galangal”, and is differentiated from the others with the common names lengkuas, greater galangal, and blue ginger.

The name “galangal” is probably derived from Persian qulanjan or Arabic khalanjan, which in turn may be an adaptation of Chinese gao liang jiang. Its names in India is derived from the same root, including kulanja in Sanskrit, kulanjan in Hindi, and kholinjan in Urdu.[2]

The name “lengkuas”, on the other hand, is derived from Malay lengkuas, which is derived from Proto-Western Malayo-Polynesian *laŋkuas, with cognates including Ilokano langkuás; Tagalog, Bikol, Kapampangan, Visayan, and Manobo langkáuas or langkáwas; Aklanon eangkawás; Kadazan Dusun hongkuas; Ida’an lengkuas; Ngaju Dayak langkuas; and Iban engkuas. Some of the names have become generalized and are also applied to other species of Alpinia as well as for Curcuma zedoaria.[3]

Alpinia galanga is also called laos Javanese and laja in Sundanese. Other names include romdeng (រំដេង) in Cambodia; pa de kaw (ပတဲကော) in Myanmar; kha in Thailand; nankyo in Japan; and hong dou kou in Mandarin Chinese.[4] In Tamil it is known as a “பேரரத்தை or பெரியரத்தை” (“Pae-reeya-ra-thai), widely used in Siddha Medicine and in culinaries.