Compounds of ぼく

• 黒ぼく
  (n) (1) (obsc) crumbly black topsoil
  (2) porous hardened lava
• ぼくぼく
  (adv,adv-to,vs) (1) (arch) (of soil, etc.) soft, dry and crumbly
  (2) sound of quiet walking
• しょぼくれる
  (v1,vi) to be dispirited
  to be dejected
  to be disheartened
  to lose heart