uplake
/ˈʌpˌleɪk/Definitions
1. noun
A lake that is formed when the water level of a river is raised, often as a result of a dam or other artificial obstruction.
“The new uplake reservoir was created by building a dam across the river.”
2. verb
To raise the water level of a river, often by building a dam or other artificial obstruction.
“The engineers decided to uplake the river to create a new reservoir for the city.”