'levelly' originates from the word 'level', which comes from Old French 'livelle', derived from Latin 'libella', a diminutive of 'libra' meaning 'balance' or 'scales'.

'level' changed from the Old French word 'livelle' and eventually became the modern English word 'level'.

Initially, it meant 'balance or scales', but over time it evolved into its current meaning of 'even or flat'.