Steady \Stead"y\, v. t. [imp. & p. p. {Steadied}; p. pr. & vb. n. {Steadying}.] To make steady; to hold or keep from shaking, reeling, or falling; to make or keep firm; to support; to make constant, regular, or resolute.
steadying adj : causing to become steady; "had a steadying effect on her nerves"