epigraph
/ˈepɪgrɑːf/noun
1- an inscription on a building, statue, or coin（建筑物、雕像、硬币上的）刻文, 铭文, 碑文, 题词。
1.1
- a short quotation or saying at the beginning of a book or chapter, intended to suggest its theme（卷首或章节前的）引语; 格言。
词源
late 16th cent. (denoting the heading of a document or letter)： from Greek epigraphē, from epigraphein 'write on'.