'line' originates from Latin, specifically the word 'linea,' where 'lin-' meant 'flax' and '-ea' meant 'thread.'

'linea' transformed into the Old French word 'ligne,' and eventually became the modern English word 'line' through Middle English.

Initially, it meant 'a thread or string,' but over time it evolved into its current meaning of 'a long, narrow mark or band.'