Between
Part of speech: preposition
Definition: In the position or interval that separates (two things), or intermediate in quantity or degree. (See the Usage notes below.) Shared in confidence. In transit from (one to the other, or connecting places). Combined (by effort or ownership). One of (representing a choice).
Example sentence: The difference between stupidity and genius is that genius has its limits.
Betwixt
Part of speech: preposition
Definition: between, specifically between two objects