löytämistään
The Finnish word "löytämistään" is a grammatical form derived from the verb "löytää," meaning "to find." Specifically, it is the genitive possessive form of the third-person singular past active participle of the verb. This means it signifies "his/her/its finding" or "the finding of him/her/it."
To break down its structure: "löytä-" is the verb stem, "-mis-" is the nominalizing suffix that turns
In practice, "löytämistään" would be used in sentences where possession of the act of finding is indicated.