This is the 5397th most frequent Turkish word.
koyup
"Putting" or "placing."
Here, 'koyup' is the gerund form of 'koymak' (to put/place) followed by an additional action ('çıkmak' - 'to go outside') indicating sequential actions.
Kitabımı masaya koyup dışarı çıktım.
I placed my book on the table and went outside.
In this instance, 'koyup' suggests performing the act of 'placing' before proceeding with 'organizing' ('yerleştirmek').
Defteri rafa koyup yerleştirdim.
I put the notebook on the shelf and organized it.
Here, 'koyup' is used to depict the act of 'placing' as a prelude to 'preparing' ('hazırlamak').