Liman is a name for a lake or estuary formed at the mouth of a river where flow is blocked by a bar of sediments. Liman can be maritime (the bar being created by the current of a sea) or fluvial (the bar being created by the flow of a bigger river at the confluence).
The word was borrowed in English from Russian лиман (liman). However, the word came from the Medieval Greek λιμένας meaning bay or port. The word was spread by Turks when they occupied the western and northern shore of the Black Sea, with the meaning of harbour and port. In Bulgarian, Romanian, Ukrainian and Russian the word defined the particular lake, Dniester Liman.1