Webster's Revised Unabridged Dictionary · 1913

Divergence

Divergence , noun

[Compare French divergence.]

1.
A receding from each other in moving from a common center; the state of being divergent; as, an angle is made by the divergence of straight lines.
Rays come to the eye in a state of divergency. — {not transcribed}
2.
Disagreement; difference.
Related with some divergence by other writers. — Sir G. C. Lewis

Also: Divergency