'sleazy' originates from German, specifically the word 'Schlesisch,' referring to Silesian linen, which was considered thin and flimsy.

'Schlesisch' transformed into the English word 'sleazy,' initially referring to thin or flimsy fabric, and eventually became associated with low quality or disreputable character.

Initially, it meant 'thin or flimsy fabric,' but over time it evolved into its current meaning of 'shabby or disreputable.'