'non-annotative' is formed from the prefix 'non-' (meaning 'not') + 'annotative', where 'annotative' is derived from the verb 'annotate' combined with the adjectival suffix '-ive'.

'annotate' comes from Late Latin 'annotare' (from Latin 'ad-' meaning 'to' + 'nota' meaning 'note'); it entered English via Medieval/Late Latin and developed into 'annotative' by the addition of the suffix '-ive'; 'non-' was then prefixed to form 'non-annotative'.

Originally 'annotate' meant 'to add notes or explanatory comments'; 'annotative' meant 'providing annotations'. 'Non-annotative' therefore denotes the absence of that function ('not providing annotations').