This is the 15853rd most frequent Polish word.
tamtejszy
"Tamtejszy" means "local" or "belonging to that place."
Here, 'tamtejsze' is used as an adjective describing children (dzieci), referring to their location or context (from that specific place).
Tamtejsze dzieci bardzo lubią grać w piłkę.
The children from there really enjoy playing football.
'Tamtejszy' functions as an adjective describing the specific climate (klimat) of a particular location.
Tamtejszy klimat pozwala na uprawę egzotycznych roślin.
The climate from there allows for the cultivation of exotic plants.
In this sentence, 'tamtejszej' is used in its feminine form to describe a tradition (tradycji), providing contextual information about its origin.