'stroke-related' originates from English, specifically a compound of the noun 'stroke' and the adjective 'related'.

'stroke' changed from Old English word 'strāc' (meaning a blow or stroke) and later acquired the medical sense of a sudden attack (cerebrovascular accident); 'related' comes from Latin 'relatus' (past participle of 'referre') via Old French/Latin-derived Middle English 'relate' and the past-participle/adjectival form 'related'. These elements were combined in modern English to form the compound 'stroke-related'.

Initially, 'stroke' primarily meant 'a blow' and then developed the medical sense of 'a sudden cerebrovascular attack'; 'related' originally carried the sense 'brought back' via Latin roots and later 'connected to'. Combined, 'stroke-related' now specifically means 'connected to or caused by a stroke'.