This is the 7487th most frequent Turkish word.
gümrükten
"From customs" (related to customs or border control).
The word 'gümrükten' refers to the origin or point of activity related to customs, indicating that items are involved with customs procedures.
Gümrükten yeni aldığı eşyaları kontrol ettirdik.
We had the newly acquired items checked at customs.
Here, 'gümrükten' indicates passing through an official customs area, highlighting motion from the customs location.
O, gümrükten geçerken valizini kontrol ettiler.
They inspected his suitcase while he was passing through customs.
In this context, 'gümrükten' portrays the location or entity of customs as the source from which the product is received.