commissary general
/ˌkɒmɪs(ə)ri ˈdʒɛn(ə)rəl/ /ˌkɒmɪs(ə)ri ˈdʒɛn(ə)r(ə)l/noun
1A person appointed to act as the most senior or powerful representative of a superior authority (in a particular place or sphere).
2 Military. The officer in charge of a particular service or department of the army; specifically the head of the commissariat. Now chiefly historical.
Origin
Late Middle English. From commissary + general.