'dreary' originates from Old English, specifically the word 'drēorig,' where 'drēor' meant 'gore' or 'blood.'

'drēorig' changed from Old English word 'drēorig' and eventually became the modern English word 'dreary'.

Initially, it meant 'bloody' or 'gory,' but over time it evolved into its current meaning of 'dull and depressing.'