This is the 16160th most frequent Polish word.
ukry
"Ukry" is a colloquial and sometimes pejorative term used in Polish to refer to Ukrainians.
Here, 'ukryty' is used as an adjective to describe something that is concealed or not visible.
Ukryty skarb zawsze wzbudza ciekawość.
A hidden treasure always sparks curiosity.
In this sentence, 'ukryć' is used as a verb meaning 'to hide' or 'to conceal' something.
Musimy ukryć dokumenty, zanim ktoś je znajdzie.
We need to hide the documents before someone finds them.
The word 'ukrytego' acts as an adjective in its genitive case form, agreeing with the noun 'serwera' and denoting that it is concealed or secretive.