overplus

noun

1. (countable, uncountable)That which remains beyond what is necessary or required; a surplus.

   “Where some for an over-plus, or supererogation have added this necessaity, that they must necessarily accompany them, as well in death, as in life.”

   “Thou hast thy Will, And Will too boote, and Will in ouer-plus.”

   “I proposed that the two referees should retire and consider for themselves how much should be allowed for the boy's board and lodging, deducting at the rate of sixpence a day for what advantage was gained by his going on errands; and that the overplus should be restored.”