Indolence evolved from the Latin in-dolens, "without griefs", implying "not worried about problems." ^* Indolence can mean:

• A synonym for laziness.
• In the context of medicine, an "indolent" condition is one that is not rapidly spreading, and is contrasted to an "aggressive" condition. It is frequently used in the context of lymphoma. [http://www.lymphomation.org/type-by-grade.htm