This is the 730th most frequent Polish word.
spod
"Spod" in Polish means "from under" or "from beneath."
Here, 'spod' is used to indicate the dog emerging from beneath the table, showing a location of origin.
Pies wybiegł spod stołu.
The dog ran out from under the table.
In this sentence, 'spod' denotes the position where the book is located, specifically under a desk.
Wyciągnij książkę spod biurka.
Take the book from under the desk.
The usage of 'spod' here illustrates the source of the mud, being from under the car.