The story
- Late Latin · derived fromsuperērogātiō“payment in addition”
- English todaysupererogation
From Late Latin superērogātiō (“payment in addition”), from superērogāre (“to pay in addition”), from super (“in addition to”) + ērogāre (“to pay, pay out, expend, disburse”), equivalent to supererogate + -ion.
Etymology from Wiktionary, CC BY-SA 4.0.