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.
tatrāpaśyatsthitānpārthaḥ pitÔnatha pitāmahān, — Then saw Partha standing upon opposite sides, uncles and grandsires, teachers, mother’s brothers, cousins, sons and grandsons, comrades… 1·26
श्वशुरान्śvaśurānaccusative plural of the masculine noun śvaśura (father-in-law).
श्वशूराःśvaśūrāḥnominative plural of the masculine noun śvaśura (father-in-law).