backstop

advance, ease, facilitate, forward, foster, further, launch

champion, endorse (also indorse), patronize, promote, sponsor

attend, care (for), comfort, minister (to), succor

sustain

bolster, boost, buttress, reinforce (also reenforce)

advise, counsel, guide, mentor, nurture

bail out, deliver, rescue, save

embolden, encourage, hearten

benefit, favor, oblige, profit, serve