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.
An obstacle, interruption, impediment, a hindrance; कुतो धर्मक्रियाविघ्नः सतां रक्षितरि त्वयि Ś.5.14; मूर्तो विघ्नस्तपस इव नः Ś.1.32; हुंकारेणेव धनुषः स हि विघ्नानपोहति Ś.3.1; Ku.3.4.
Difficulty, trouble.
Derived forms and compounds
-ईशः, -ईशानः, -ईश्वरः epithets of Gaṇeśa; विघ्नेशो वः स पायाद्विवृतिषु जलधीन् पुष्कराग्रेण पीत्वा. denotes that the rest of the word under consideration is to be suppliedवाहनम् a rat.