Etymology of the Greek word stomachos (στόμαχος)
the Greek word stomachos, στόμαχος (gullet, oesophagus; an orifice (the gullet); (specially), the 'stomach')
derived from the Greek word stoma, στόμα (mouth; the mouth (as if a gash in the face); by implication, language (and its relations); figuratively, an opening (in the earth); specially, the front or edge (of a weapon))