'poorly-designed' originates from the combination of 'poorly,' meaning 'in a poor manner,' and 'designed,' the past participle of 'design,' which comes from Latin 'designare,' meaning 'to mark out.'

'poorly-designed' evolved from the combination of 'poorly' and 'designed,' which was used in Middle English as 'designen.'

Initially, 'design' meant 'to mark out or plan,' but over time, 'poorly-designed' evolved to describe something that is not well planned or constructed.