This is the 67th most frequent Latvian word.
kuriem
"Which" (dative plural form).
In this sentence, 'kuriem' is used as a relative pronoun referring to plural masculine noun 'draugi' (friends) in its dative form, indicating the object of trust.
Tie ir draugi, kuriem es uzticos.
These are the friends I trust.
Here, 'kuriem' functions as a relative pronoun replacing 'cilvēkiem' (to the people) in its dative form, specifying the action performed for those people.
Es piezvanīju cilvēkiem, kuriem biju apsolījis palīdzību.
I called the people to whom I had promised help.
In this example, 'kuriem' once again serves as a relative pronoun in the dative form, corresponding to 'cilvēkiem' (to people), qualifying them by their characteristics.