From the time of the first Kings of Numenor, it had been tradition for the ruler to take a royal name in the Quenya tongue. The tradition stood until the latter half of Numenor's third millenium, when King Ar-Adunakhor defied it. He was the first King to take a name in the native Adunaic language of the Numenoreans, though a Quenya translation of the name was also recorded.
Ar-Adunakhor was succeeded by his son, who inherited the Sceptre in the name of Ar-Zimrathon. Like his father, a Quenya version of his name was also recorded: Tar-Hostamir, where hostamir appears to mean "collector of jewels".