This is the 3060th most frequent Polish word.
pokory
"Pokory" means "humility" or "meekness" in English.
Pokory in this sentence refers to the quality of being humble and modest, especially in challenging situations.
W obliczu trudności okazał dużo pokory.
In the face of difficulties, he showed a lot of humility.
Here, pokory is in its instrumental case form, 'pokorą', indicating the manner in which the criticism was accepted—'with humility'.
Przyjął krytykę z pokorą i postanowił ulepszyć swoje działanie.
He accepted the criticism with humility and decided to improve his actions.
In this example, pokora describes a consistent character trait of being humble even when achieving success.