'irregularly-made' originates from the combination of 'irregularly' and 'made', where 'irregularly' is derived from Latin 'irregularis', meaning 'not regular', and 'made' is the past participle of 'make'.

'irregularis' transformed into the Old French word 'irregulier', and eventually became the modern English word 'irregular'.

Initially, 'irregular' meant 'not conforming to rule', and over time it evolved to describe anything that lacks uniformity or consistency.