'spicy' originates from Middle English, specifically the word 'spicier', where 'spice' meant 'aromatic or pungent substance'.

'spicier' transformed into the modern English word 'spicy', and eventually became 'spiciest' as the superlative form.

Initially, it meant 'full of spices', but over time it evolved into its current meaning of 'having a strong, pungent flavor'.