eärendur

masculine name. Mariner, *(lit.) Servant of the Sea

Several people had this name in Tolkien’s legendarium: (1) the second son of Tar-Amandil (UT/208, 210), (2) a lord of Andúnië and uncle of lady Inzilbêth (UT/223) and (3) the 10th and final king of the combined kingdom of Arnor (LotR/1038). The name was a compound of ëar “sea” and the suffix -(n)dur “-servant”. Tolkien translated the name as “Mariner” (Let/386), but a more exact translation might be “✱Servant of the Sea”.