obstipation vs constipation

obstipation and constipation both are nouns.

Word	Noun	Adjective	Verb	Adverb
obstipation	Yes	No	No	No
constipation	Yes	No	No	No

As nouns, constipation is a hypernym of obstipation; that is, constipation is a word with a broader meaning than obstipation:

obstipation: severe constipation resulting from an obstruction in the intestines
constipation: irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis

Other hypernyms of obstipation include irregularity.

obstipation (noun)	constipation (noun)
severe constipation resulting from an obstruction in the intestines	the act of making something futile and useless (as by routine)
	irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis