海の幸[uminosachi] seafood
幸い[saiwai] happiness
幸甚[koujin] pleased
幸福[koufuku] happiness
山の幸[yamanosachi] food of the mountains (wild game, mountain vegetables, mushrooms, etc.)

幸せ者[shiawasemono] fortunate person
多幸[takou] great happiness
不幸[fukou] unhappiness
幸運[kouun] good luck

栖息[seisoku] inhabiting
隠栖[insei] secluded life
旧栖[kyuusei] old home
幽栖[yuusei] living a quiet life in seclusion away from the masses

栖む[sumu] to live (of animals)
羊栖菜[hijiki] hijiki (dark edible seaweed usu. sold in dried black strips; Hizikia fusiformis)
終の栖[tsuinosumika] one's final abode