Demerge :: Demerge (v. t.) To plunge down into; to sink; to immerse.
Emerge :: Emerge (v. i.) To rise out of a fluid; to come forth from that in which anything has been plunged, enveloped, or concealed; to issue and appear; as, to emerge from the water or the ocean; the sun emerges from behind the moon in an eclipse; to emerge from poverty or obscurity..
Emergence :: Emergence (n.) The act of rising out of a fluid, or coming forth from envelopment or concealment, or of rising into view; sudden uprisal or appearance..
Emergency :: Emergency (n.) Sudden or unexpected appearance; an unforeseen occurrence; a sudden occasion.
Emergency :: Emergency (n.) An unforeseen occurrence or combination of circumstances which calls for immediate action or remedy; pressing necessity; exigency.
Emergent :: Emergent (a.) Rising or emerging out of a fluid or anything that covers or conceals; issuing; coming to light.