Chen Collection, Middle Volume Radical: Tree (mù) Entry: Su Kangxi strokes: 14 Page 543, Entry 27 Collected Rhymes (Jiyun): Pronounced su. Classified Chapters (Leipian): Refers to a wooden object or utensil that has not yet undergone decorative finishing. Generally used interchangeably with the word su (plain). Rites of Zhou (Zhouli), Artificers of Dried Wood (Gaoren): Regarding the commentary on presenting plain objects, when the form and structure of an object are determined but have not yet been decorated, it is referred to as su.