ت ل لt-l-l
(ن) تَلَلَ يَتْلُلُtalala yatlulu (original form) → تَلَّ يَتُلُّ تَلًّاtalla yatullu tallan: to throw someone to the ground, to fell. Only once in the Quran: ﴿فَلَمَّا أَسْلَمَا وَتَلَّهُۥ لِلْجَبِيْنِ﴾ (Aṣ-Ṣāffāt 37:103) — i.e. he laid him down on his forehead (الْجَبِيْنal-jabīn: the side of the forehead).
تَلّtall pl. تِلَالtilāl: a mound, a high heap.