Answer:
1. In many passages, the word is used something like this: "Your vain conversation received from your fathers," or "Our conversation is in heaven." In the first passage, conversation refers to a manner of life; and in the second, it means citizenship. If you were to look up the root word and prefix, you would find that it means to have some kind of interaction with another person.
2. The word peculiar was used in 1611 to mean a very special person or object. This meaning can be followed to its present meaning, strange, odd, or unusual.
3. The word corn in England was the name used for all other grains except corn. They had never seen the grain they obtained later from the American Indian.