'community-immune' originates from the combination of 'community' and 'immune', where 'community' refers to a group of people living in the same place or having a particular characteristic in common, and 'immune' means resistant to a particular infection or toxin.

'community' and 'immune' were combined to form the modern term 'community-immune', reflecting the concept of herd immunity.

Initially, 'immune' meant 'protected from disease', and 'community' referred to a group of people. Together, they evolved to describe a population's collective immunity.