Vacillation (?), n. [L. vacillatio: cf. F. vacillation.] 1. The act of vacillating; a moving one way and the other; a wavering.[1913 Webster]
His vacillations, always exhibited most pitiably in emergencies.
2. Unsteadiness of purpose; changeableness.[1913 Webster]
There is a vacillation, or an alternation of knowledge and doubt.