'non-diabetic' originates from the prefix 'non-' meaning 'not' and 'diabetic' from the Greek word 'diabētēs' meaning 'siphon'.

'diabētēs' transformed into the Latin word 'diabetes', and eventually became the modern English word 'diabetic'. The prefix 'non-' was added to indicate the absence of diabetes.

Initially, 'diabētēs' referred to a condition of excessive urination, but over time it evolved into its current meaning related to blood sugar levels.