Kryvbas in the context of Portmanteau

Dnipro is Ukraine's fourth-largest city, with about one million inhabitants. It is located in the eastern part of Ukraine, 391 km (243 mi) southeast of the Ukrainian capital Kyiv on the Dnipro River, from which it takes its name. Dnipro is the administrative centre of Dnipropetrovsk Oblast. It hosts the administration of Dnipro urban hromada. Dnipro has a population of 968,502 (2022 estimate).

Archeological evidence suggests the site of the present city was settled by Cossack communities from at least 1524. Yekaterinoslav ("glory of Catherine") was established by decree of the Russian Empress Catherine the Great in 1787 as the administrative center of Novorossiya. From the end of the 19th century, the town attracted foreign capital and an international, multi-ethnic workforce exploiting Kryvbas iron ore and Donbas coal.

Kryvyi Rih (/ˈkrɪvi ˈriː/ KRIV-ee REE; Ukrainian: Кривий Ріг, IPA: [krɪˈwɪj ˈr⁽ʲ⁾iɦ] ), also known as Krivoy Rog (Russian: Кривой Рог [krʲɪˈvoj ˈrok]), is a city in central Ukraine. It hosts the administration of Kryvyi Rih Raion and its subordinate Kryvyi Rih urban hromada in Dnipropetrovsk Oblast. The city is part of the Kryvyi Rih Metropolitan Region. Its population is estimated at 603,904 (2022 estimate), making it the seventh-most populous city in Ukraine and the second largest by area. Kryvyi Rih is claimed to be the longest city in Europe.

Located at the confluence of the Saksahan and Inhulets rivers, Kryvyi Rih was founded as a military staging post in 1775. Urban-industrial growth followed Belgian, French and British investment in the exploitation of the area's rich iron-ore deposits, generally called Kryvbas, in the 1880s. Kryvyi Rih gained city status after the October Revolution in 1919.

Alexander Nikolayevich Pol (Russian: Александр Николаевич Поль; 20 August 1832 – 26 July 1890) was a Russian archaeologist, geologist, ethnographer and businessman of Baltic German descent. He is most well-known for discovering Kryvbas, a major iron ore region of Eastern Europe.