stipulate

Concise Oxford English Dictionary © 2008 Oxford University Press:
stipulate1 /ˈstɪpjʊleɪt/

▶verb demand or specify as part of a bargain or agreement.

– derivatives
stipulation noun,
stipulator noun.

– origin C17 (earlier (C16) as stipulation): from L. stipulat-, stipulari ‘demand as a formal promise’.

Concise Oxford English Dictionary © 2008 Oxford University Press:
stipulate2 /ˈstɪpjʊlət/

▶adjective Botany having stipules.

– origin C18: from L. stipula (see stipule) + -ate2.