The word is not found elsewhere, and is tentatively interpreted as belonging to the corium (i.e. ‘hide, skin’) family.
s.
1leathertannery, place where animal skins are prepared:
(
s.xiii3/3; MS: s.xiv1/3
)
Item, si soit entre vus nul bocher [...] qe receyve grassis bestes emblez e feare (l. face?) deliverance en marché ou en quirie
96