This is the 10224th most frequent Turkish word.
beklentilerinden
"From your/their expectations."
The word 'beklentilerinden' here means 'from his expectations' and indicates a comparison beyond what was anticipated.
Onun beklentilerinden daha fazlasını yaptık.
We did more than his expectations.
The word 'beklentilerinden' in this sentence functions to show the source of influence, which are the expectations of his friends.
O, arkadaşlarının beklentilerinden etkilendi.
He was influenced by his friends' expectations.
In this usage, 'beklentilerinden' implies a comparison between actual achievements and the individual's expectations.