dilapidated temple; abandoned temple; temple ruins
Refers to a temple that has fallen into disrepair, often with a sense of neglect or abandonment. Can describe the physical state or the atmosphere.
There was a dilapidated temple deep in the mountains.
That abandoned temple hasn't been visited for years.
Compound of 荒れ (are, 'rough, wild, dilapidated', from verb 荒れる) and 寺 (tera, 'temple'), with rendaku voicing of てら to でら.