[ soo-per-uh-rog-uh-tawr-ee, -tohr-ee ]
/ ˌsu pər əˈrɒg əˌtɔr i, -ˌtoʊr i /


going beyond the requirements of duty.
greater than that required or needed; superfluous.

Origin of supererogatory

From the Medieval Latin word superērogātōrius, dating back to 1585–95. See supererogate, -tory1

Related forms

su·per·e·rog·a·to·ri·ly, adverb Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for supererogatory

British Dictionary definitions for supererogatory


/ (ˌsuːpərɛˈrɒɡətərɪ, -trɪ) /


performed to an extent exceeding that required or expected
exceeding what is needed; superfluous
RC Church of, characterizing, or relating to prayers, good works, etc, performed over and above those prescribed as obligatory

Derived Forms

supererogatorily, adverb

Word Origin for supererogatory

C16: from Medieval Latin superērogātōrius; see supererogate
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