Real Betis for two years before being officially recognised (in 1909); despite this 1907 remains the official foundation date of the club. Following an internal split from Sevilla FC, another club was formed, Betis Football Club. In 1914, they merged with Sevilla Balompié. The club received its royal patronage in the same year, and therefore adopted the name Real Betis Balompié. Fans continued to refer to the club as "Balompié" and were themselves known as "Los Balompedistas" until the 1930s, when "Betis" and the adjective "Béticos" became common terminology when discussing the club and its followers. Real Betis wear a green and
Names for association football which prohibits similar games back to at least that century. This commonality is reflected in the auxiliary languages Esperanto and Interlingua, which utilize "futbalo" and "football", respectively. In the first half of the 20th century, in Spanish and Portuguese, new words were created to replace "football" ("fútbol" in Spanish and "futebol" in Portuguese), "balompié" ("balón" and "pie" meaning "ball" and "foot") and "ludopédio" (from words meaning "game" and "foot") respectively. However, these words were not widely accepted and are now only used in club names such as Real Betis Balompié and Albacete Balompié. Aside from the name of the game