(Greek: ektasis; dilated, expanded, distended, extension +)

(Latin: blind, blind gut [first part of the large intestine, forming a dilated pouch into which open the ileum, the colon, and the appendix vermiformis]; any blind pouch)

(Greek: blind, blindness [typhlos, blind]; denotes relationship to the cecum or the first part of the large intestine, forming a dilated pouch; also called the "blindgut" or "blind intestine" [caecum, "blind, blind gut", typhlon, cecum])