The linen certainly was clean, and, as a matter of fact, the turpentine was supererogatory.
To some it may seem unwelcome, to others redundant and supererogatory.
To speak panegyrically of his prowess, is supererogatory; as his bravery has been the theme of history and of song.
With the boys this would have been supererogatory, as they were quite naked.
But you are always given to surprise me with abundant kindness—with supererogatory kindness.
What supererogatory marks of special hospitality did the host show his guest?
But the supererogatory lie is the gentleman without a voucher or a ticket who accommodates himself with a stool in the passage.
Apropos of this 'supererogatory and adscititious' prohibition.
I do really; and the supererogatory virtue of kindness may be acknowledged out of the pale of the Romish Church.
Those arguments are not necessary, they are all supererogatory, like idle words.
Latin super- + erogare 'to pay out'