مر

2 مرّرهُ ذ , (inf. n. تَمْرِيرٌ, TA,) He, or it, made it bitter; (S, K;) as also ↓ امرّهُ: (IAar, S:) or ↓ مَرَّهُ, aor. مَرُ3َ , has this signification, and the first verb has an intensive signification [ he, or it, made it very bitter ]. (Msb.)