'non-podal' originates from the prefix 'non-' meaning 'not' and the root 'podal' from Greek 'pous' meaning 'foot'.

'Podal' comes from the Greek word 'pous', which evolved into the modern English term 'podal', and the prefix 'non-' was added to form 'non-podal'.

Initially, it meant 'not having feet', and this meaning has remained consistent in modern usage.