What's the difference between corrival and corroval?

Corrival

Definition:

• (n.) A fellow rival; a competitor; a rival; also, a companion.
• (a.) Having rivaling claims; emulous; in rivalry.
• (v. i. & t.) To compete with; to rival.

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Corroval

Definition:

• (n.) A dark brown substance of vegetable origin, allied to curare, and used by the natives of New Granada as an arrow poison.

Example Sentences: