Supererogatory works

[entscheidung]

"It is so obvious that the Picts were not going to be content with part of a king (Bede 28.21) and that even the wives of soldiers who have been on active service for fifteen years do not need all other men to achieve satisfaction (Or. 44.21) that it was supererogatory to point it out by grammatical means."

Bruce Mitchell, Old English Syntax (Vol 1, section 1341)