'protection-related' originates from English, specifically a compound of the noun 'protection' and the adjective 'related'. 'Protection' ultimately comes from Latin 'protectio' (from 'protegere'), and 'related' comes via Old French and Latin roots from 'relatus' (past participle of 'referre').

'protection' entered English via Old French and Middle English from Latin 'protectio' (from 'protegere' meaning 'to cover in front'); 'related' entered English from Old French/Latin (Latin 'relatus', past participle of 'referre' meaning 'to bring back' or 'relate'), and the modern compound 'protection-related' is a recent English formation combining the two words.

Each component retained much of its original sense: 'protection' originally referred to an act of protecting (from Latin 'protectio'), and 'related' indicated a connection; combined in modern English they mean 'connected to protection' or 'concerning protection'.