Noah Webster
Consistent
CONSISTENT, adjective [Latin See Consist.]
1. Fixed; firm; not fluid; as the consistent parts of a body, distinguished from the fluid.
2. Standing together or in agreement; compatible; congruous; uniform; not contradictory or opposed; as, two opinions or schemes are consistent; let a man be consistent with himself; the law is consistent with justice and policy.
So two consistent motions act the soul