What is the meaning of Pieri?

third-person singular past indicative of pierrä

inflection of pieriä:

1. third-person singular past indicative
2. present active indicative connegative
3. second-person singular present imperative
4. second-person singular present active imperative connegative

third-person singular past indicative

present active indicative connegative

second-person singular present imperative

second-person singular present active imperative connegative

accusative/instrumental singular of piere

to perish, die

to disappear, vanish

Source: wiktionary.org