स्थेष्ठstheṣṭhaa.Very firm, strongest; (superl. of स्थिर q. v.).
Very firm, strongest; (superl. of स्थिर quod vide, which see).
कोशःDictionaries
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.