boost morale

aid approve assist back bolster boost endorse establish help hold justify maintain promote side with uphold

abet advance carry champion cheer comfort countenance forward foster second stay substantiate sustain verify

agree with bear out get behind go along with go to bat for keep up plead for pull for put forward rally round stand behind stand up for stick by stick up for take one's side take the part of throw in one's lot with throw in with

block condemn decrease desert disapprove discourage halt hinder hurt injure invalidate obstruct oppose prevent reject stop undermine

disprove impede

contradict let down let go neglect refuse release