Where does “estomac” come from?

estomac (Old French) comes from Latin stomachus, from Ancient Greek στόμαχος, from Ancient Greek στόμα, from Proto-Indo-European stomn̥.

estomac (Old French): stomach

Definitions

Step	Language	Word	Meaning
1	Latin	stomachus	gullet, alimentary canal; stomach; taste or...
2	Ancient Greek	στόμαχος	throat, gullet; stomach; bladder
3	Ancient Greek	στόμα	mouth; face; The source of a river or stream
4	Proto-Indo-European	stomn̥	—