V. S. Apte, The Practical Sanskrit–English Dictionary. Look up any word of the Gita in Devanagari, IAST or Harvard-Kyoto, or browse the headwords letter by letter.
Entry सुम
सुमsuma1 The moon.
1 The moon.
Camphor.
Sky.
Derived forms and compounds
-मम् A flower; स्मरस्य स्वर्बालानयनसुममालार्चनपदम् Bv.1.84.