'audibleness' originates from English, specifically formed from the adjective 'audible' plus the suffix '-ness' to create a noun meaning 'the state or quality of being audible'.

'audible' derives from Late Latin 'audibilis' (from Latin 'audire' meaning 'to hear'); 'audibilis' passed into Middle English (via Old French influence) as 'audible', and English later formed 'audibleness' by adding the native suffix '-ness'.

Initially, the root meant 'to hear' (from Latin 'audire'); over time the derived adjective meant 'able to be heard', and the noun formed with '-ness' came to mean 'the condition or quality of being able to be heard'.