Meaning of the Sanskrit Word: smayamana

  smayamana—smiling    Adi 5.214, Madhya 8.81, Madhya 8.140
  smayamana—smiling    SB 3.23.49
  smayamana—smiling (because she was chaste)    SB 9.3.22

Can't find any compound Sanskrit words containing smayamana.