This is the 2378th most frequent Spanish word.
allende
"Allende" means "beyond" or "on the other side."
Here, 'allende' is used to mean 'beyond', indicating a location on the far side of an object, the river in this case.
La casa está justo allende el río.
The house is just beyond the river.
In this sentence, 'allende' is used again as 'beyond', referring to places or concepts situated past a specific landmark, the mountains here.
He leído sobre los misterios allende las montañas.
I have read about the mysteries beyond the mountains.
'Allende' in this example is applied metaphorically to mean 'beyond', referencing concepts that lie outside the scope of human perception.