The orthography of his glossary differs considerably from the orthography of his text.
It is given in the Glossary as one of the old names for the moon.
Consult the new edition of Nares' Glossary, voce Walsingham.
These shields are figured in the Glossary of Heraldry, pp. 285, 286.
Nares, in his Glossary, says that crants is a German word, and probably Icelandic.