An ancient Coptic inscription written on an ostracon
OSTRACA Ostraca (the plural of ostracon) are potsherds with writing on them. Significant collections have been found in Samaria, Lachish, and Arad. They enhance appreciation for the cultural and historical contexts of the Israelite and late Judean monarchies.
Longman, Tremper, III, Peter Enns, and Mark Strauss, eds. The Baker Illustrated Bible Dictionary 2013 : 1255. Print.