Ukraine is a initialism of bruk.
As a proper noun ukraine
As an initialism bruk is
(economics) belarus, russia, ukraine and kazakhstan.
Other Comparisons: What's the difference?
* Ocraine; Ukrain; Ukrania, Ucrania
(en proper noun
A country in Eastern Europe; was long part of the Russian Empire, then of the Soviet Union. Official name: Ukraine.
* Since the country's independence in 1991, style guides recommend Ukraine'' (as in "a musician from Ukraine"), without an article. Previously, the most common usage was ''the Ukraine (as in "a musician from the Ukraine").
* Little Russia
(economics) Belarus, Russia, Ukraine and Kazakhstan