Lewis & Short

pūmĭlĭo (collat. form pūmĭlo, Stat. S. 1, 6, 57), ōnis, comm. [pumilus], a dwarf, pigmy: necari a non armato pumilione, Mart. 1, 43, 10: scutum pumilionis erit, id. 14, 213, 2.
Of women: parvula, pumilio (est) Χαρίτων μία, tota merum sal, Lucr. 4, 1162.
Prov.: pumilio, licet in monte, non est magnus, Sen. Ep. 76, 31.
Transf., of fowls, Col. 8, 2, 14; bantams, Plin. 10, 56, 77, § 156; of plants, id. 11, 49, 108, § 260; 12, 2, 6, § 13; 17, 22, 35, § 176.