'FOMO' originates from English, specifically the phrase 'fear of missing out', where 'fear' meant 'an unpleasant emotion caused by the threat of danger, pain, or harm'.

'Fear of missing out' was abbreviated to 'FOMO' in the early 21st century and became popular in digital and social media contexts.

Initially, it meant 'fear of missing out on social events', but over time it evolved into its current meaning of 'anxiety over missing any opportunity'.