تزلّج
1.
He, or it, slipped, or slid along or down; synonym تَزَلَّقَ: (S, TA:) his foot slipped. (KL. [See also 5 in article زلخ.])
2.
One says of an arrow, يَتَزَلَّجُ عَنِ القَوْسِ or
يَنْزَلِجُ [It slips from the bow]. (S and K, according to different copies.)