'amissibility' originates from Latin, specifically the word 'amissibilis,' where 'amiss-' meant 'lost' and '-ibilis' meant 'able to be.'

'amissibilis' transformed into the Medieval Latin word 'amissibilitas,' and eventually became the modern English word 'amissibility.'

Initially, it meant 'able to be lost,' and this meaning has largely remained the same in modern usage.