eccyesis vs pregnancy

eccyesis and pregnancy both are nouns.

Word	Noun	Adjective	Verb	Adverb
eccyesis	Yes	No	No	No
pregnancy	Yes	No	No	No

As nouns, pregnancy is a hypernym of eccyesis; that is, pregnancy is a word with a broader meaning than eccyesis:

eccyesis: pregnancy resulting from gestation elsewhere than in the uterus
pregnancy: the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus

Other hypernyms of eccyesis include gestation, maternity.

eccyesis (noun)	pregnancy (noun)
pregnancy resulting from gestation elsewhere than in the uterus	the state of being pregnant; the period from conception to birth when a woman carries a developing fetus in her uterus