merg-, mers-

(Latin: dip, dive, plunge; rise out of a liquid; combine into one)

demersal (adjective)
1. Living or dwelling at or near the bottom of a body of water.
2. Sinking to or deposited near the bottom of a body of water; such as, the sea.
emerge, emerges; emerged; emerging (verbs)
emerge, emerse, immerge
emerge (i MURJ) (verb)
To come forth, to rise up, to come into sight and is usually followed by "from": Mary was seen with her hair dripping as she was about to emerge from the swimming pool.

The sun is about to emerge from behind those fleecy clouds.

emerse (ee MURS) (verb)
To arise, or to cause to surface, from a liquid: A water lily standing out of the water with its surrounding leaves is said to emerse from the water.
immerge (i MURJ) (verb)
To plunge or to sink into and to disappear; while in its former meaning, it is synonymous with "immerse": The chemist will immerge the metal rod into the acid.

The faint moon will immerge into the shadow of the sun.

The mermaid decided to immerge herself into the deep water; then with a flick of her tail, she seemed to emerge from the water like a flash of silver.

emergence (s), emergences (pl) (nouns)
emergency (s), emergencies (pl) (nouns)
emergent (adjective)
emergent (s), emergents (pl) (nouns)
emergent vegetation (s), emergent vegetations (pl) (nouns)
1. In a rain forest, those isolated species which protrude above the major portion of the forest canopy.
2. Aquatic plants, as cattails and sedges, that protrude or extend above the surface of a pond.
emergently (adverb)
emergentness (s) (noun)
emerse, emerses; emersed; emersing (verbs)
emersion (i MUHR zhuhn, i MUHR shuhn) (s) (noun), emersions (pl)
1. The act or process of coming out of something; making an appearance: Greta's emersion from obscurity in her company to a position of leadership was amazing.
2. The appearance of a moon, a planet, or other heavenly bodies after an eclipse: Using a strong telescope, the astronomer was able to chart the emersion of the distant planet after the eclipse of the sun.
Fluctuat nec mergitur.
It is tossed by the waves but does not sink.

A motto of Paris, France, which has a ship as its emblem. This motto is also translated as, "Unsinkable". Like other cities that have existed for a long time, Paris has had its bad times and its good times.

In ancient times, Paris was called Lutetia Parisiorum, from a Gaulish-Latin word Lutetia [lutum is a Latin word meaning "mud"], a fortified town of the Gaulish tribe of the Parissi). The name Lutetia literally means "swamps" with its muddy and slimy characteristics.

immerge, immerges; immerged; immerging (verbs)
immergence (s), immergences (pl) (nouns)
The act of sinking or plunging into or under something: "The tourists were watching the immergences of the seals into the ocean."