The Chinese logograms for peng and kun exemplify common radical-phonetic characters. Peng (鵬) combines the "bird radical" (鳥) with a peng (朋 "friend") phonetic, and kun combines the "fish radical" (魚) with a kun (昆 "progeny; insect") phonetic. Both the mythic Chinese Peng and Kun names involve word play. Peng (鵬) was anciently a variant Chinese character for feng (鳳) in fenghuang (鳳凰 "Chinese phoenix") (ca. 100 CE Shuowen Jiezi); Kun 鲲 originally meant "fish roe; fry; spawn" (ca. 200 BCE Erya).