This square, composed of OED words, is semimagic because any row or column (the rook sweeps) anagrams into NORWICH BUMSTEAD. "Semi" means the diagonals don't.
"An Order 5 Affine Geometry,"
Word Ways: Vol. 41
, Article 28.
Available at: http://digitalcommons.butler.edu/wordways/vol41/iss2/28