Pathology. deficiency of energy.
Immunology. lack of immunity to an antigen.

Origin of anergy

< New Latin anergia. See an-1, ergo-1, -y3
Related formsa·ner·gic [a-nur-jik, an-er-] /æˈnɜr dʒɪk, ˈæn ər-/, adjective Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for anergy



lack of energy
immunol diminution or lack of immunity to an antigen
Derived Formsanergic (æˈnɜːdʒɪk), adjective

Word Origin for anergy

from New Latin anergia, from an- + Greek ergon work
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

anergy in Medicine




Absence of sensitivity to substances that would normally elicit an antigenic response.
Related formsan•ergic (ă-nûrjĭk, ănər-) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.