'apposite' originates from Latin, specifically the word 'appositus' (past participle of 'apponere'), where 'ad-' (appearing as 'ap-') meant 'to, toward' and 'ponere' meant 'to place'.

'apposite' changed from Late Latin 'appositus' and through post-classical/Medieval Latin and formational use in learned English it eventually became the modern English word 'apposite'.

Initially, it meant 'placed near' or 'put beside', but over time it evolved into its current meaning of 'appropriate' or 'highly relevant'.