Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

ostrăcĭas, ae, m., and ostrăcītis, ĭdis, f., = οστρακίας, ὀστρακῖτις, a semigem, prob. hornstone or chalcedony, Plin. 37, 10, 65, § 177.