malady

The word 'malady' entered English in the 13th century from the Old French maladie, meaning 'sickness, illness, disease'. The Old French term was itself a derivation from the phrase malade ('sick'), which came from the Latin male habitus, literally meaning 'ill-kept' or 'in a bad condition'. Thus, the core logic of the word has remained consistent from its Latin roots: it denotes a 'bad state' or 'bad condition', which evolved specifically to refer to a state of poor health or a chronic affliction, whether physical or metaphorical.

Structure: mal (bad) + ady (state/condition) 'mal' is from Latin malus, meaning 'bad, evil, ill'. 'ady' is a reduced form from the Latin suffix -ies (stem -adi-), which forms abstract nouns indicating a state or condition.