This is the 4119th most frequent Russian word.
пригожину
"Пригожину" is not a standalone word; it is the dative case or possessive form of the surname "Пригожин" (Prigozhin), meaning "to Prigozhin" or "belonging to Prigozhin."
In this sentence, 'Пригожина' is a proper name in the accusative case, referring to someone named Prigozhin, whom the speaker saw.
Я вчера видел Пригожина на концерте.
I saw Prigozhin at the concert yesterday.
Here, 'пригожину' is used as an adjective that means 'useful' in a colloquial or poetic style, modifying the noun 'оценку' (evaluation).
Пока об этом говорили, я не слушал пригожину оценку.
While they were speaking about it, I didn't listen to the useful evaluation.
In this sentence, 'пригожину' functions as an adjective in a colloquial or archaic style, emphasizing the relevance or usefulness of the statement to the cause.