From Japanese-English FreeDict Dictionary ver. 0.1:
楝 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, 樗 /(en)tʃˈaɪniːz(ja)lˈe̞tə/, おうち /o̞ˈɯᵝtɕi/
1. (noun (common) (futsuumeishi))
栴檀・せんだん
Note: archaismchinaberry, Japanese bead tree (Melia azedarach)
2. light purple outside, green inside, purple outside, light purple inside, type of garment layering color scheme, worn in April and May