The spelling of the name "Alyksandr" may seem unusual to some, but it's actually the Belarusian version of the name Alexander. The "y" replaces the "e" sound in the name, which is represented by the letter "a" in English. The IPA phonetic transcription of the name would be /aˈlɪksandr/, with the stress on the second syllable. As with many names, the spelling and pronunciation can vary depending on the language and culture in which it is used.
The name "Alyksandr" is derived from the Greek name "Alexandros", which means "defender of man" or "protector of mankind". It is a combination of the Greek words "alexein" (to defend) and "andros" (man). The name was originally bestowed upon Alexander the Great (356-323 BCE), one of the most famous and influential military leaders in history. From Alexander the Great, the name spread throughout the ancient Greek world and later to various cultures through conquests, trade, and cultural exchange, resulting in different forms and variations of the name in different languages. This is how "Alexandros" evolved into "Alyksandr" in certain regions or languages.