Haruspex was formed in Latin by the combination of "haru-" (which is akin to "chordē," the Greek word for "gut") and "-spex" (from the verb specere, meaning "to look"). Appropriately, "haruspex" can be roughly defined as "one who looks at guts." The ancient Romans had a number of ways of determining whether the gods approved of a particular course of action. Such divination was called "augury," and a haruspex was a type of "augur," an official diviner of ancient Rome. (Other augurs divined the will of the gods through slightly less gruesome means, such as observing the behavior of birds or tracking celestial phenomena.) "Haruspex," like "augur," has developed a general sense of "one who prophesies," but this use is somewhat rare.

History and Etymology for haruspex

borrowed from Latin haruspex, harispex, from a stem haru-, hari-, presumed to mean "intestines" (probably going back to Indo-European *ǵhr̥H-u-, u-stem derivative of *ǵhr̥H- "gut, cord made from animal intestines") + -spex, noun derivative of a verbal base -spec- "see, observe" — more at yarn entry 1, spy entry 1

Note: The noun stem haru- is unattested aside from this word and a derivative, hariolus "soothsayer, diviner." The relatively rare Latin nouns hīra "intestine" and hernia, hirnia "rupture of an organ through connective tissue, inguinal hernia" (see hernia) are of uncertain relation; hīra would be difficult to produce from *ǵhr̥H- in a way compatible with sound laws, and hernia, though conceivably from *ǵherH-n-, is not very close semantically.