'inauditability' originates from English, specifically assembled from the negative prefix 'in-' (from Latin) and 'auditability' (from 'audit' + '-ability'), where 'in-' meant 'not' and the root 'audire' (Latin, source of 'audit') meant 'to hear' (later used for 'examine' in accounting contexts).

'inauditability' changed through a modern English formation: Latin 'audire' gave Medieval/Old French forms (e.g. Old French 'audite'/'auditer') which entered English as 'audit'; English formed 'auditability' (audit + -ability) and then the negative prefix 'in-' was prefixed to create 'inauditability'.

Initially it meant 'not able to be audited' (a literal negative formation) and this meaning has remained largely consistent in modern usage, referring to inability to perform an audit or verification.