When we take the literal meaning
Dasharatha or Dasharath means ten Chariots, because sandhi viccheda for Dasharatha would be Dasha + Ratha : Dasha means ten and Ratha means chariot.
How can someone have a name like 10 Chariots? is there another meaning or story associated with this name?
Note: I prefer answer from valid sanskrit dictionary like Apte and/or Valmiki Ramayana.