Webster's Revised Unabridged Dictionary · 1913

Quicken tree

Quicken tree

[Probably from quick, and first applied to the aspen or some tree with quivering leaves; compare German quickenbaum, quizenbaum, quitschenbaum. Compare Quitch grass.]

(Botany) The European rowan tree; -- called also quickbeam, and quickenbeam. See Rowan tree.