'antivenom-related' originates from the modern English compounds 'antivenom' and 'related'; 'antivenom' itself combines the prefix 'anti-' meaning 'against' and 'venom' meaning 'poison', while 'related' derives from Latin 'relatus' via the verb 'relate'.

'antivenom' is a 19th–20th century formation (anti- + venom) referring to substances that counteract venom; the adjectival compound 'antivenom-related' evolved from phrases like 'related to antivenom' into the hyphenated compound used for concise technical description.

Initially, 'antivenom' literally signified 'against venom' (anti- + venom) and came to mean a serum or treatment that neutralizes venom; 'antivenom-related' has developed as a straightforward adjective meaning 'connected with or concerning antivenom'.