vbl. sb. [f. as prec.] The action of supporting with props, etc.; also concr., that which serves to underprop.
1586. T. B., La Primaud. Fr. Acad., I. 391. Mauger all the power and under-propping, which he receiveth from the wicked.
1592. Nashe, P. Penilesse, 17. I will not, by the vnderpropping of confutation, seeme to giue the idle witted aduersary so much encouragement.
1628. Feltham, Resolves, II. xix. 61. [The soul] rests full, in her owne approuement, without the weake Worlds reedy vnder-propping.
1658. A. Fox, Würtz Surg., II. xiv. 107. Such Wounds must be helped with underproppings and bolsters.
1726. Leoni, Albertis Archit., II. 129. Let this underpropping be run up as fast as possible.