ひと塊[ikkai] one lump
塊根[kaikon] tuberous root
塊状[kaijou] massive
凝塊[gyoukai] clot
金塊[kinkai] nugget

集塊[shuukai] agglomerate (e.g. of cells, molecules, etc.)
団塊の世代[dankainosedai] baby boom generation
土塊[dokai] lump of earth
肉塊[nikukai] piece of meat
氷塊[hyoukai] lump of ice

寡欲[kayoku] unselfishness
我欲[gayoku] selfishness
強欲[gouyoku] greed
禁欲[kinyoku] abstinence
少欲[shouyoku] a little covetousness

情欲[jouyoku] passions
色欲[shikiyoku] lust
食欲[shokuyoku] appetite (for food)
人欲[jinyoku] human desires
制欲[seiyoku] control of passions