The word(s) "eloquent" appears 2 time(s) in 2 verse(s) in Quran in Muhammad Habib Shakir translation.

(1) And by breast straitens, and my tongue is not eloquent, therefore send Thou to Haroun (to help me);

(سورة الشعراء, Ash-Shu'araa, Chapter #26, Verse #13)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)

(2) And my brother, Haroun, he is more eloquent of tongue than I, therefore send him with me as an aider, verifying me: surely I fear that they would reject me.

(سورة القصص, Al-Qasas, Chapter #28, Verse #34)
(Arabic, Transliteration, Urdu (Ahmed Ali), Urdu (Jalandhry), Farsi, Yusuf Ali, Shakir, Picthal, Mohsin Khan, French, Spanish, Indonesian, Malay, German, Bosnian, Russian, Dutch, Italian, Portuguese, Tafsir - Jalal ad-Din, Tafsir - King Fahad Quran Complex)