'Angeleno' originates from English, specifically formed by combining 'Angel' (from 'Los Angeles') with the Spanish suffix '-eno', where '-eno' means 'a person from (a place)'.

'Angeleno' was coined in the late 19th or early 20th century in the United States to refer to residents of Los Angeles, adapting the Spanish naming convention for demonyms.

Initially, it meant 'a person from Los Angeles', and this meaning has remained unchanged in modern usage.