Ganja or ganjah (, ; ) is one of the oldest and most commonly used synonyms for cannabis flower, specifically marijuana or hashish. Its usage in English dates to before 1689.
Ganja is borrowed from Hindi (, IPA: ]), a name for cannabis in the Indo-Aryan language that descended from an early form of Vedic Sanskrit. The Sanskrit refers to a "powerful preparation from Cannabis sativa". But the word only refers to a certain product derived from cannabis plants. GÃÂñjàis the title given to the flowers, whereas âÂÂcharasâ refers to the resin, and âÂÂbhangâ the seeds and leaves.
The word ganja reached the Western world through victims of slavery. Victims of the Atlantic slave trade were brought from Africa to Jamaica in 1513. In 1845, the British Empire started to call for indentured Indians to come to the Caribbean to strengthen the workforce on sugar plantations. They brought with them elements of their culture, including ganja.
One academic source places the date of introduction of ganja in Jamaica at 1845. The term came with 19th century workers whose descendants are now known as Indo-Jamaicans.
The word was used in Europe as early as 1856, when the British enacted a tax on the "ganja" trade.
In 1913, Jamaica banned cannabis with the Ganja Law.
Ganja is the most common term for marijuana in the Caribbean brought by the Indian indentured laborers.
Cultural figureheads such as Bob Marley popularized Rastafari and ganja through reggae music. In 1976, Peter Tosh defended the use of ganja in the song "Legalize It". The hip hop group Cypress Hill revived the term in the United States in 2004 in a song titled "Ganja Bus", followed by other artists, including rapper Eminem, in the 2009 song "Must Be the Ganja".
Derivatives of the term are used as generic words for marijuana in several languages, such as Indonesian/Malay (), Khmer (, ), Lao (, ), Thai (, ), Tiwi (), and Vietnamese ().