This is the 4910th most frequent Turkish word.
eşeğinin
"Of the donkey" (possessive form).
The word refers to the possession of the donkey owned by the subject.
Eşeğinin sırtına eyer koydu.
He placed a saddle on his donkey's back.
The word refers to the possession of the donkey as described in the observed action.
Eşeğinin yavaş hareket ettiğini fark etti.
He noticed that his donkey was moving slowly.
The word signifies the connection between the owner and the donkey being mentioned.