Considering how much Sauron enjoyed corrupting all that was good, could it be possible that the reason Black Speech sounds similar to Valarin is that Sauron wanted a corrupted version of Valarin for his slaves to use? In that way, he would have mocked Iluvatar, by saying, "Look, don't I resemble you? I'm doing exactly what you were." That would have greatly hurt Iluvatar and the Valar, which is probably what Sauron was going for.
__________________
But Melkor also was there, and he came to the house of Fëanor, and there he slew Finwë King of the Noldor before his doors, and spilled the first blood in the Blessed Realm; for Finwë alone had not fled from the horror of the Dark.
|