Extra
Extra noun - An interchangeable part or piece of equipment that is kept on hand for replacement of an original.
Root
Root noun - A point or place at which something is invented or provided.
How words are described
Both words in one sentence
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As for the curse itself, it's trying to do the same thing the human characters are, root out the "extra", but simply does not discriminate between targets while trying to get the right one.
Source: Non-Malicious Monster - The screenwriter went to the extra effort of having the squad cause numerous collateral deaths in the process because otherwise it would have been much harder to get the audience to root against them.
Source: Necessarily Evil - In the fanfic Arrogance And Envy, they also power up by individual Spirit Bomb effects once their users "awaken" - for example, Pinkie Pie (Laughter) gains extra power from anypony she can cheer up, while Rainbow Dash (Loyalty) is powered up when those she fights for root for her.
Source: Combined Energy Attack
Cite this Source
Root and Extra. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/extra/root
Extra & Root. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/extra/root>.
Root or Extra. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/extra/root.
Google Ngram Viewer shows how "extra" and "root" have occurred on timeline