From rakab; a chariot; also a seat (in a vehicle) -- chariot, covering, saddle.
see HEBREW rakab
H4817. merkab
מֶרְכָּב noun masculineLeviticus 15:9 chariot, riding-seat (properly riding-place); —
1 chariot ( = following), suffix לְמֶרְכָּבוֺ סוּסִים 1 Kings 5:6.
2 absolute ׳מ, probably saddle Leviticus 15:9 (P).
3 מֶרְכָּבוֺ seat of litter Song of Solomon 3:10.