Douglas Harper's Etymology Dictionary
cloison
"a partition, a dividing band," 1690s, from French cloison, from Vulgar Latin *clausionem (nominative *clausio), noun of action from past participle stem of Latin claudere "to close, shut" (see clause). Related: Cloisonnage.
Usage examples of "cloison".
And over there behind the arch is still, a great warrior in cloison armor.
This band and the twin handles were inlaid with garnets and scarlet enamel, set off by the gold strips of the cloisons in which the enamel was set.