'non-hierarchical' originates from the prefix 'non-' meaning 'not' and 'hierarchical' from the Greek word 'hierarchia,' where 'hieros' meant 'sacred' and 'archos' meant 'ruler.'

'hierarchia' transformed into the Latin word 'hierarchia,' and eventually became the modern English word 'hierarchical.' The prefix 'non-' was added to form 'non-hierarchical.'

Initially, 'hierarchical' meant 'sacred ruler,' but over time it evolved into its current meaning of 'arranged in order of rank.' The prefix 'non-' negates this meaning.