A Noldorin Elf of Angrod’s people (S/212). His name is apparently a combination of the prefix ar(a)- “noble” and the noun minas “tower”, though it is unclear why the second element was not lenited to *-vinas, as occurred in similar names like Arvegil. In a Discord chat on 2024-05-20, Parmandil suggested it might be a North Sindarin or Quenya name to explain the lack of lenition. Vyacheslav Stepanov suggested its initial element might instead be arn-, as in Argonath.