サイ 
つま 
() wife () spouse
     
つま (n) (1) wife, (2) (arch) dear (formerly used by romantically linked men and women to refer to one another), (3) (uk) garnish (esp. one served with sashimi), (4) (uk) embellishment
さいし (n) wife and children

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字