I’ve started a blog about heraldry and, particularly, about ecclesiastical heraldry. It can be found at
exarandōrum - genitive masculine/neuter plural of exarandus
exarandus - future passive participle of exarāre
exarāre - to plough or dig up; till, cultivate,
exarandōrum = "of that which is to be ploughed"
Very cool! I have bookmarked the site.