The Sula River is a left tributary

Tributary

A tributary or affluent is a stream or river that flows into a main stem river or a lake. A tributary does not flow directly into a sea or ocean...

 of the Dnipró or Dnieper River

Dnieper River

The Dnieper River is one of the major rivers of Europe that flows from Russia, through Belarus and Ukraine, to the Black Sea.The total length is and has a drainage basin of .The river is noted for its dams and hydroelectric stations...

 with a total length of 365 km and a drainage basin of 19,600 km².

The river flows into the Dnieper through the Kremenchuk Reservoir

Kremenchuk Reservoir

The Kremenchuk Reservoir is the largest water reservoir located on the Dnieper River. Named for the city of Kremenchuk, it covers a total area of 2,250 square kilometres in the territories of the Poltava, Cherkasy, and Kirovohrad Oblasts in central Ukraine...

, with which it forms a large delta

River delta

A delta is a landform that is formed at the mouth of a river where that river flows into an ocean, sea, estuary, lake, reservoir, flat arid area, or another river. Deltas are formed from the deposition of the sediment carried by the river as the flow leaves the mouth of the river...

 with numerous islands, on which rare kinds of birds live. An important tributary is the Uday River, smaller ones being Orschyzya, Sliporid, Romen

Romen River

The Romen River is a right tributary of the Sula River with a length of 111 km and a drainage basin of 1,645 km². It begins in the northern Ukrainian Oblast of Chernihiv and flows into the Sula River near the Sumy Oblast city of Romny. The average discharge quantity amounts to 3 m³/s at...

 and Tern.

Large cities located on the river are Romny

Romny

Romny is a city in the northern Ukrainian Oblast of Sumy. It is located on the Romen River and is the administrative center of the Romny Raion...

, Lokhvytsya, Chervonoazovske and Lubny

Lubny

Lubny is a city in the Poltava Oblast of central Ukraine. Serving as the administrative center of the Lubensky Raion , the city itself is also designated as a separate raion within the oblast...

.

The river's name evokes slow or muddy waters considering the words it is related to: Lithuanian

Lithuanian language

Lithuanian is the official state language of Lithuania and is recognized as one of the official languages of the European Union. There are about 2.96 million native Lithuanian speakers in Lithuania and about 170,000 abroad. Lithuanian is a Baltic language, closely related to Latvian, although they...

/Latvian

Latvian language

Latvian is the official state language of Latvia. It is also sometimes referred to as Lettish. There are about 1.4 million native Latvian speakers in Latvia and about 150,000 abroad. The Latvian language has a relatively large number of non-native speakers, atypical for a small language...

 sulà "birch sap", Old Prussian sulo "curdled milk", Norwegian

Norwegian language

Norwegian is a North Germanic language spoken primarily in Norway, where it is the official language. Together with Swedish and Danish, Norwegian forms a continuum of more or less mutually intelligible local and regional variants .These Scandinavian languages together with the Faroese language...

 dialectal saula "dirt", Sanskrit

Sanskrit

Sanskrit , is a historical Indo-Aryan language and the primary liturgical language of Hinduism, Jainism and Buddhism.Buddhism: besides Pali, see Buddhist Hybrid Sanskrit Today, it is listed as one of the 22 scheduled languages of India and is an official language of the state of Uttarakhand...

 súrā "spiritous liquor", and Avestan hurā "intoxicating drink, kumis

Kumis

Kumis, also spelled kumiss or koumiss in English is a fermented dairy product traditionally made from mare's milk. The drink remains important to the peoples of the Central Asian steppes, of Turkic and Mongol origin: Bashkirs, Kazakhs, Kyrgyz, Yakuts, Mongols and Kalmyks...

" .