'dissectible' originates from Latin, specifically the word 'dissecare', where 'dis-' meant 'apart' and 'secare' meant 'to cut'. The adjective was formed in English by combining the verb 'dissect' with the adjectival suffix '-ible' (from Latin '-ibilis').

'dissectible' changed from the verb 'dissect', which itself came from Latin 'dissecare' (and from Old French forms such as 'dissequer'); the modern English adjective developed by adding the suffix '-ible' to form 'dissectible'.

Initially, the root meant 'to cut apart', but over time it evolved into the current adjective meaning 'able to be dissected or analyzed'.