This is the 11377th most frequent Turkish word.
emeklerinin
"Emeklerinin" means "of their efforts" or "of their labor."
Here, 'emeklerinin' refers to one's efforts or hard work and the possession ('mentioning about his/her efforts').
Emeklerinin karşılığını almanın mutluluğunu yaşıyordu.
He was experiencing the joy of receiving the fruits of his efforts.
In this sentence, 'emeklerinin' expresses the concept of efforts done by someone that should not be wasted.
Emeklerinin boşa gitmesine izin vermemelisin.
You should not allow your efforts to go to waste.
Here, 'emeklerinin' indicates recognizing and valuing one's own hard work and accomplishments.