Noah Webster's 1828 American Dictionary of the English Language is regarded by many as the finest English
dictionary ever published. The dictionary is available in many forms. I made the content available here for my own purposes,
out of personal admiration for this particular dictionary.
VACILLA'TION, n. [L. vacillatio.] 1. A wavering; a moving one way and the other; a reeling or staggering. 2. Fluctuation of mind; unsteadiness; change from one object to another.