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तस्य संजनयन्हर्षं कुरुवृद्धः पितामहः ।
सिंहनादं विनद्योच्चैः शङ्खं दध्मौ प्रतापवान् ॥१-१२॥

tasya saMjanayanharShaM kuruwRRiddhaH pitaamahaH ।

siMhanaadaM winadyochchaiH sha~NkhaM dadhmau prataapawaan ॥१-१२॥

Source: Automatic ITRANS Transliteration

To boost his spirits, elder of the Kurus, grandsire
A lion's sound loudly roared, sounded a conch-shell glorious.

To boost his spirits, the grandsire, the elder of the Kurus, loudly roared a lion's roar, and sounded a glorious conch-shell.

Source: Milind S. Pandit

The mighty Bheeshma, the eldest man of the Kuru dynasty, roared as a lion and blew his conch loudly bringing joy to Duryodhana.

Source: The Bhagavad-Gita: The Sacred Song

Then Bhisma, the great valiant grandsire of the Kuru dynasty, the grandfather of the fighters, blew his conchshell very loudly like the sound of a lion, giving Duryodhana joy.

Source: Bhagavad Gita As It Is