What is "ixchel"

Ixchel or Ix Chel is the 16th-century name of the aged jaguar goddess of midwifery and medicine in ancient Maya culture. She corresponds, more or less, to Toci Yoalticitl "Our Grandmother the Nocturnal Physician", an Aztec earth goddess inhabiting the sweatbath, and is related to another Aztec goddess invoked at birth, viz. Cihuacoatl (or Ilamatecuhtli). In Taube's revised Schellhas-Zimmermann classification of codical deities, Ixchel corresponds to the Goddess O.