buoy_up
1. [ verb ] make more cheerful
Synonyms: lighten
Related terms: cheer
2. [ verb ] make more cheerful
Synonyms: lighten
Related terms: weigh_down cheer cheer lighten
3. [ verb ] keep afloat
Synonyms: buoy
Examples:

: "The life vest buoyed him up"

Related terms: hold
Similar spelling:   buy_up
  bufo
  Bubo
  Buffy