This is the 6159th most frequent Polish word.
atherton
The word "Atherton" is not Polish; it is an English proper noun, typically referring to a surname or a place name.
In this sentence, 'Atherton' is a proper noun referring to a specific town or city.
Odwiedziłem Atherton podczas mojej podróży do Australii.
I visited Atherton during my trip to Australia.
Here, 'Atherton' again denotes the name of a location being described.
Atherton jest znany ze swojej pięknej przyrody.
Atherton is known for its beautiful nature.
In this usage, 'Atherton' is used as a surname identifying a particular person.