Where does “σκασμός” come from?

σκασμός (Greek) comes from Greek σκάζω, from Byzantine Greek σκάζω, from Ancient Greek σχάζω — to make an incision, let flow.

σκασμός (Greek): Suffocation or asphyxia caused by overindulgence,...

Definitions

Step	Language	Word	Meaning
1	Greek	σκάζω	burst, explode, alternative form of σκάω; "see"...
2	Byzantine Greek	σκάζω	I limp; to limp
3	Ancient Greek	σχάζω	to make an incision, let flow