bolster
1. bol.ster \'bo-l-st*r\ n [ME, fr. OE; akin to OE belg bag - more at BELLY] 1: a long pillow or cushion extending the full width of a bed 2: a structural part designed to eliminate friction or provide support or b earing; esp : the horizontal connection between the volutes of an Ionic capital 2. bolster \-st(*-)rin\ \-st*r-*r\ vt or bol.ster.ing : to support with or as if with a bolster; also : REINFORCE - bol.ster.er n