decommissioned
UK[ˌdiːkəˈmɪʃənd]US[ˌdiːkəˈmɪʃənd]
adj
Taken out of active service or use, especially of a military installation, weapon, or piece of equipment.
verb (past tense and past participle)
To have taken something (e.g., a ship, nuclear reactor) out of active service.
Morpheme Breakdown
de
commission
ed
de
reverse
commission
authorize for service
ed
adjective/verb suffix
Etymology
The word 'decommissioned' is built upon the verb 'commission,' which originates from the Latin committere, meaning "to bring together" or "to entrust." The prefix 'de-' acts as a reversive force, literally meaning "to undo the act of commissioning." The suffix '-ed' marks it as a completed action. Thus, the term's logic is transparent: it describes the formal process of removing something from its authorized state of active duty, transitioning it from a state of service to one of retirement or disuse. This term is most commonly applied in military, industrial, and technological contexts.
Analysis
Structure: de (reverse) + commission (authorize for service) + ed (adjective/verb suffix)
- de: A Latin prefix meaning "off, away, down, reverse, undo."
- commission: From Latin committere ("to bring together, entrust"), via Old French. In English, it means to formally place into service or authorize.
- ed: A suffix of Old English origin used to form the past tense and past participle of verbs, which can also function as an adjective.
Examples
The old warship was decommissioned and turned into a museum.
Several nuclear reactors are scheduled to be decommissioned over the next decade.
The software has been decommissioned and is no longer supported by the developer.