Meaning of the Sanskrit Word: mahattama

  mahattama—of the great souls    SB 1.19.13
  mahattama—of the great devotees    SB 4.20.24
  mahattama—the greatest amongst the living being    SB 1.18.14
  mahattama—the greatest of all greats    SB 1.18.15
  mahattama—great devotees    SB 1.18.19

Can't find any compound Sanskrit words containing mahattama.