Anglicisation

The English Wiktionary has dictionary definitions (meanings of a word) for: anglicise and anglicize

Anglicisation or Anglicization (see -ise vs -ize) is the act of changing of spoken or written elements of another language into a more understandable form for an English speaker.

For instance, Rome is spelled "Roma" in Italian. English speakers call the city "Rome" to make it sound more English. Another example is the city of Moscow in Russia. In Russian, the city is pronounced like "Moskva". Still, English speakers call the city "Moscow" because it is easier to say.