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 रूष्
रूष्rūṣTo tremble.
To tremble.
To burst. -III. 1 Parasmaipada To hurt, to kill; Latin D. B.
Derived forms and compounds
रूष्rūṣ
I. 1 Parasmaipada (रूषति, रूषित)
To adorn, decorate.
To smear, anoint, cover, overlay (as with dust). -II. 1 Ubbayapada (Parasmaipada and Atmanepada) (रूषयति-ते)