Zhejiang
The province's name derives from the Zhe River (Zhe Jiang , Zhe Jiang), the former name of the Qiantang River which flows past Hangzhou and whose mouth forms Hangzhou Bay. It is usually glossed as meaning "Crooked" or "Bent River", from the meaning of Chinese Zhe , but is more likely a phono-semantic compound formed from adding San  (the "water" radical used for river names) to phonetic Zhe  (pinyin zhe but reconstructed Old Chinese *tet), preserving a proto-Wu name of the local Yue, similar to Yuhang, Kuaiji, and Jiang.
Which river does the province of Zhejiang derive its name from?
Zhe River
The province's name derives from the Zhe River (Zhe Jiang , Zhe Jiang), the former name of the Qiantang River which flows past Hangzhou and whose mouth forms Hangzhou Bay.
Zhejiang