'lymphocyte-related' originates from modern English, specifically a compound of 'lymphocyte' and 'related'. 'lymphocyte' comes from New Latin/Greek elements meaning 'clear (fluid)' and 'cell', and 'related' comes from Latin past participle 'relatus' (from 'referre').

'lymphocyte' derives from Greek 0BBFBFB9B9A1A1A4 'lymphBDA1' (lymph, clear fluid) + Greek 'kytos' (cell) via New Latin into modern English; 'related' comes from Latin 'relatus' (past participle of 'referre'), passed through Old French and Middle English to modern English. The compound 'lymphocyte-related' is a modern English formation used in biomedical contexts.

Initially the components referred specifically to 'lymph (clear fluid) + cell' and to being 'brought back/connected' (Latin root); combined in modern usage the compound means 'having a connection with lymphocytes', a specialized descriptive term that has retained the component meanings in a technical sense.