'shoddily-mended' originates from the combination of 'shoddy' and 'mend'. 'Shoddy' comes from the 19th-century English word 'shoddy', meaning 'of poor quality', and 'mend' from Old English 'mendan', meaning 'to repair'.

'Shoddy' evolved from the 19th-century English term for poor-quality woolen cloth, while 'mend' has been used since Old English times to mean 'repair'.

Initially, 'shoddy' referred to poor-quality cloth, but now it broadly means 'of poor quality'. 'Mend' has consistently meant 'to repair'.