This is the 13267th most frequent Russian word.
монахов
The Russian word "монахов" is the genitive plural form of "монах," which means "monk."
The word "монахов" here is the genitive plural form of "монах," meaning "monk," used to denote plurality in the context of meeting several monks.
В монастыре мы встретили нескольких монахов.
In the monastery, we met several monks.
Here "монахов" is used as the accusative plural form of "монах," indicating that monks are the object in the story being told.
Она рассказала историю о подвигах монахов.
She told a story about the feats of monks.
In this case, "монахов" is the genitive plural form of "монах," used in a possessive context to show ownership or source.