مدر

1 مَدَرَهُ ذ , (S, Msb, K,) aor. مَدُرَ , (S, Msb,) inf. n. مَدْرٌ, (Msb, TA,) He plastered it (a place) with [مَدَر, or] clay, or loam, or mud; as also ↓ مدّرهُ, (M, K,) inf. n. تَمْدِيرٌ. (TA.) He repaired it (namely a watering-trough or tank) with مَدَر; (S, Msb;) i. e., clay, or loam, or mud: (Msb:) he closed the interstices of its stones with مَدَر: (S, K:) he plastered its surface with clay, or loam, or mud, in which was no sand, in order that it might not cleave open, or in order that its water might not issue forth. (TA.)