from The American Heritage® Dictionary of the English Language, 4th Edition
- intransitive v. To do more than is required, ordered, or expected.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To engage in supererogation.
from the GNU version of the Collaborative International Dictionary of English
- intransitive v. To do more than duty requires; to perform works of supererogation; to atone (for a dificiency in another) by means of a surplus action or quality.
from The Century Dictionary and Cyclopedia
- To do more than duty requires; make up for some deficiency by extraordinary exertion.
Late Latin superērogāre, superērogāt-, to spend over and above : Latin super-, super- + Latin ērogāre, to spend (ē-, ex-, ex- + rogāre, to ask; see reg- in Indo-European roots).(American Heritage® Dictionary of the English Language, Fourth Edition)