'erratically' originates from Latin, specifically the word 'erraticus,' where 'err-' meant 'to wander.' 'Provided' comes from Latin 'providere,' where 'pro-' meant 'forward' and 'videre' meant 'to see.'

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

Initially, 'erraticus' meant 'wandering,' but over time it evolved into its current meaning of 'irregular.' 'Providere' initially meant 'to foresee,' but evolved to mean 'to supply or give.'