'non-transmissible' originates from Latin, specifically the prefix 'non-' meaning 'not' and the word 'transmissibilis,' where 'trans-' meant 'across' and 'mittere' meant 'to send.'

'transmissibilis' transformed into the French word 'transmissible,' and eventually became the modern English word 'transmissible' with the prefix 'non-' added to indicate negation.

Initially, it meant 'not able to be sent across,' and this meaning has largely remained the same in modern usage.