'cagey' originates from the English word 'cage', where 'cage' meant 'a structure of bars or wires in which birds or other animals are confined'.

'cagey' evolved from the notion of being 'caged' or 'trapped', implying a sense of caution or wariness.

Initially, it meant 'being in a cage', but over time it evolved into its current meaning of 'being cautious or secretive'.