一切經音義 98.93

98.93

頡頑（上賢結反下航浪反考聲頡頑乍上乍下也毛詩傳曰飛而上曰頡飛而下曰頑也頡或作[(土/口)*羽]頑或作[(〦/儿)*羽]並通用）。

Flapping up and down: 頡 [jie] (upper character: 賢 + 結 fanqie); 頑 [wan] (lower character: 航 + 浪 fanqie. The Kaosheng says: "'Jiewan' means suddenly ascending and suddenly descending." The Mao commentary on the Shijing says: "Flying upward is called jie; flying downward is called wan." 頡 is also written as [(土/口)*羽], and 頑 as [(〦/儿)*羽]; both are interchangeable).