Why is Westminster called westminister?

Westminster is called so because it was originally the site of a monastery established in the 7th century, known as "West Minster," referring to its location west of the City of London. The term "minster" denotes a church or monastery, and over time, the name evolved to "Westminster." The area became prominent as the seat of the British Parliament and the location of Westminster Abbey, further solidifying its significance in British history and governance.