Anglican (Anglicana) comes from England or English. Simply, when the Apostles sent missionaries throughout the world to establish the Catholic Church, they came to England. From this, the Ecclesia Anglicana was established with her own bishops, and she developed her own customs and spirituality.
The Ecclesia Anglicana is the Catholic Church established in Great Britain and continued in tradition and patrimony wherever this is brought to the nations.
This tradition is authentically catholic. That is, it preserves and cherishes that which is universal: believed always, everywhere, and by all.
In the Sixteenth Century, when the Church of Rome fell into great superstition and error, the Ecclesia Anglicana reflected on the Scriptures and the Church’s history.
While remaining herself, the Ecclesia Anglicana purified what was harmful and kept what was healthy.
The Ecclesia Anglicana exists as a communion of churches who continue the same tradition and patrimony, in the same catholic faith.
To learn more, the Anglican Catholic Church is a good resource for learning more about Anglicanism.