The Collaborative International Dictionary of English v.0.48:

Papoose \Pa*poose"\, n.
   A babe or young child of Indian parentage in North America.
   [1913 Webster]

WordNet (r) 3.0 (2006):

papoose
    n 1: an American Indian infant [syn: papoose, pappoose]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "papoose":
   babe, baby, baby bunting, bambino, incubator baby, infant,
   little angel, little darling, mewling infant, neonate, nursling,
   preemie, premature baby, preschooler, puling infant, suckling,
   toddler, weanling, yearling