non-operational

The word is a modern English compound formed by attaching the negative prefix 'non-' to the adjective 'operational.' The prefix 'non-' derives from Latin non, a straightforward adverb of negation meaning "not." The base word 'operational' has a longer lineage, tracing back to Latin operatio (a working), from the verb operari (to work, to labor), itself from opus (work). The core concept of work or effort evolved through Late Latin and French into English, where 'operation' came to mean an act of functioning or a military mission, and 'operational' described something ready for such action. Therefore, 'non-operational' logically constructs its meaning by directly negating this state of readiness, indicating that something is not working or not available for active service.

Structure: non (not) + operational (functioning) - non: A prefix of Latin origin, meaning "not." It functions as a negative particle. - operational: An adjective of Latin origin (from operari 'to work'), meaning "in working order" or "ready for use." It functions as the base word describing a state of functionality.