I have used the phrase:
"There are not enough words in the tongues of men, elves, dwarves, trolls, goblins, or beasts to describe how disgusting..."
in a couple of reviews of mine, which someone has pointed out is very similar to this:
"There is no curse in Elvish, Entish, or the tongues of men for this treachery." by Treebeard from Lord of the Rings
While the meaning of the sentence and the sentence structure are similar, they only share one or two words. Is this plagiarism, or just two similar sentences?