渂:
1. Anciently the same as "汶" (Wén).
- "汶" is an ancient name for a river located in present-day Shandong, which has several related place names, such as 大渂口 (Dà Yánkǒu), 渂上 (Yánshàng), and 新渂煤矿 (Xīn Yán Méikuàng).
- The current 大汶水 (Dà Wén Shuǐ), also referred to as "大汶河" (Dà Wén Hé), originates in the north of Laiwuzhi City, Shandong Province. In ancient times, it flowed from Dongping County to the southeast of Liangshan and emptied into the Jishui River. Its main current now flows west into Dongping Lake, merging north into the Yellow River, eventually reaching Jinan. — "Book of Documents: Tribute of Yu"
2. Anciently the same as "岷" (Mín).
- "岷": "The river flows out from the ~ mountain, traveling over two thousand miles."