'fib' originates from the English dialect word 'fibble-fable,' where 'fibble' meant 'a lie' and 'fable' meant 'a story.'

'fibble-fable' transformed into the modern English word 'fib' through simplification and usage.

Initially, it meant 'a trivial story or lie,' but over time it evolved into its current meaning of 'a small or trivial lie.'