adjutant

Concise Oxford English Dictionary © 2008 Oxford University Press:
adjutant /ˈadʒʊt(ə)nt/

▶noun

• 1 a military officer acting as an administrative assistant to a senior officer.

• 2 a large black-and-white stork with a massive bill and a bare head and neck, found in India and SE Asia. [Genus Leptoptilos: two species.]

– derivatives
adjutancy noun.

– origin C17: from L. adjutant-, adjutare, frequentative of adjuvare (see adjuvant).