Толковый словарь английского языка Oxford English Reference - bolster

1. n. & v. --n. 1 a long thick pillow. 2 a pad or support, esp. in a machine. 3 Building a short timber cap over a post to increase the bearing of the beams it supports. --v.tr. (usu. foll. by up) 1 encourage, reinforce (bolstered our morale). 2 support with a bolster; prop up. Derivatives bolsterer n. Etymology: OE f. Gmc 2. n. a chisel for cutting bricks. Etymology: 20th c.: orig. uncert.