'erratically-linked' originates from the word 'erratic,' which comes from Latin, specifically the word 'erraticus,' where 'err-' meant 'to wander.'

'erraticus' transformed into the Old French word 'erratique,' and eventually became the modern English word 'erratic.'

Initially, 'erratic' meant 'wandering' or 'roving,' but over time it evolved into its current meaning of 'irregular' or 'unpredictable.'