祖 zǔ grandfather
Made up of [礻 shì spirit; altar radical 113, 且 qiě and; moreover; yet ]Similar looking characters : 租 zū (to hire)
Made with 9 strokes.
Combines the 'altar' radical and tablet so is linked to ancestral veration
Ancient small seal form 
Related characters
Also uses 礻 shì component: 福 fú (good fortune) 礼 lǐ (ceremony) ; 神 shén (god)
Also uses 且 qiě component: 姐 jiě (elder sister) 宜 yí (proper) ; 组 zǔ (to form) ; 阻 zǔ (to hinder) ; 租 zū (to hire)