'objection' originates from Latin, specifically the word 'obiectio' (from 'obicere'), where 'ob-' meant 'against' and 'iacere' meant 'to throw'.

'objection' changed from Anglo-French/Old French 'obiection' and Middle English 'obieccioun' and eventually became the modern English word 'objection'.

Initially it meant 'a throwing before' or 'opposition', but over time it evolved into the current meaning of 'an expression of disapproval or a formal protest' (including the legal sense).