712vuotiaaksi
712vuotiaaksi is a Finnish word that translates to "to be 712 years old" in English. It is a compound word formed from the numeral "712" (seitsemänsataakaksitoista), the Finnish word for years "vuotta" (which is in the allative case here, indicating direction or a state of becoming), and the Finnish infinitive suffix "-ksi" which denotes a change of state or becoming something. Therefore, "712vuotiaaksi" specifically describes the process or state of becoming 712 years of age.
The word itself is highly unusual due to the extremely advanced age it represents. In practical human