'unexaminability' originates from English, specifically composed of the prefix 'un-' (from Old English 'un-' meaning 'not'), the verb 'examine' (from Latin 'examinare'/'examen', where 'ex-' meant 'out' and 'examen' meant 'a weighing, a test'), and the suffix '-ity' (from Latin '-itas' meaning 'state or quality').

'examen' (Latin) produced the verb 'examine' in Middle English via Old French; from 'examine' came the adjective 'examinable' (able to be examined), then the negative formation 'unexaminable', and finally the abstract noun 'unexaminability' formed by adding the suffix '-ity'.

Initially the roots referred to 'weighing' or 'testing' (Latin 'examen'); over time they produced words meaning 'to inspect or test,' and 'unexaminability' has developed to mean 'the state or quality of not being capable of examination.'