'lymphatic' originates from Latin, specifically the word 'lymphaticus,' where 'lympha' meant 'water' or 'clear fluid.'

'lymphaticus' transformed into the French word 'lymphatique,' and eventually became the modern English word 'lymphatic' through Middle English.

Initially, it meant 'related to water or clear fluid,' but over time it evolved into its current meaning of 'related to lymph.'