The act or process of one who, or that which, springs. [1913 Webster]
Growth; increase; also, that which springs up; a shoot; a plant. [1913 Webster]
"Thou blessest the springing thereof."
[1913 Webster]
Springing line of an arch(Arch.), the horizontal line drawn through the junction of the vertical face of the impost with the curve of the intrados; -- called also spring of an arch.