'erratically-evaluated' originates from the combination of 'erratic' and 'evaluate'. 'Erratic' comes from Latin 'erraticus', meaning 'wandering', and 'evaluate' comes from Latin 'valere', meaning 'to be strong'.

'Erraticus' transformed into the Old French 'erratique', and eventually became the modern English word 'erratic'. 'Valere' transformed into the French 'évaluer', and eventually became the modern English word 'evaluate'.

Initially, 'erratic' meant 'wandering', but over time it evolved into its current meaning of 'unpredictable'. 'Evaluate' has largely retained its original meaning of 'assessing or judging'.