1610s, "action of delegating" (earlier in this sense was delegacie, mid-15c.); perhaps a native formation, perhaps from French délégation, or directly from Latin delegationem (nominative delegatio) "assignment, delegation," noun of action from past participle stem of delegare (see delegate). Meaning "persons sent by commission" is from 1818; meaning "a state's elected representatives, taken collectively," is U.S. political usage from 1820s.
1. The delegation was carrying a message of thanks to President Mubarak.
2. A key factor in running a business is the delegation of responsibility.
3. Russia demanded that Unita send a delegation to the peace talks.
4. the Dutch delegation to the United Nations
5. The statement of our delegation was singularly appropriate to the occasion.