Czajkowski
Czajkowski (Polish pronunciation: [tʂajˈkɔfskʲi], feminine: Czajkowska, plural: Czajkowscy) is the Polish form of a Slavic surname. Its Russian (Cyrillic: Чайко́вский, fem: Чайко́вская) and Ukrainian (Чайко́вський, fem: Чайковська) forms have numerous English transliterations, including Chaikovskiy, Chaikovsky, Chaikovskyi, Chaykovskiy, and Chaykovsky; and, influenced by French, Tchaikovski or Tchaikovsky (feminine ending in Russian: -skaia or -skaya; Ukrainian: -ska).