bolster
bolster
/ˈbəʊlstə(r)/
to improve something or make it stronger
bolster something to bolster somebody’s confidence/courage/morale
I needed to stress the bus driver’s evidence in order to bolster my case.
bolster something up Falling interest rates may help to bolster up the economy.
Collocations
noun as the object
Word Origin
Old English, of Germanic origin; related to Dutch bolster and German Polster.
e.g.