Ěryǎ 爾雅

 ‘Approaching Correctness’, the earliest surviving Chinese dictionary or glossary, traditionally associated with the late Zhōu or early Hàn period. Organised by semantic categories rather than graphic form, it became a foundational work of Chinese lexicography and philology. Later lexical works, including Guǎngyǎ, were often conceived as supplements or continuations of the Ěryǎ. It is frequently cited in the interpretation of classical vocabulary and technical terminology in early Chinese texts.#text