'deplorable' originates from the French word 'déplorable', which in turn comes from the Latin word 'deplorabilis', where 'de-' meant 'down' and 'plorare' meant 'to weep or lament'.

'déplorable' transformed into the English word 'deplorable' during the late 16th century.

Initially, it meant 'worthy of lamentation', but over time it evolved into its current meaning of 'shockingly bad in quality'.