naus-, nau-, naut-, -naut, -nautical, -nautics

(Greek: ship; sailor; navigation)

cosmonautics (pl) (noun), (plural used as a singular)
The science and activities of astronauts when they are traveling in outer space.
cybernaut (s) (noun), cybernauts (pl)
Someone or those who surf, or navigate, the internet like sailors who navigate the oceans: Cybernauts use computers to achieve their working objectives, entertainment, communication, and various personal projects.
hydronaut (s) (noun), hydronauts (pl)
A person trained to work in deep-sea vessels for research and rescue purposes.
internaut noun), internauts (pl)
Someone who explores the internet (or "cyberspace"), and who is normally searching for information: An internaut is an "internet sailor" or a "sailor on the internet".
lunarnaut (s) (noun), lunarnauts (pl)
Someone who travels or has traveled to the moon: A lunarnaut is literally, a "moon sailor".
naulage (s) (noun), naulages (pl)
The freight or goods of passengers in a ship that is traveling on water.
naumachia (s) (noun), naumachias (pl)
A naval spectacle or a mock sea battle presented by the ancient Romans: The naumachias were used to entertain Romans in the circuses.
naumachy (s) (noun), naumachies (pl)
In Roman antiquity, a show or spectacle representing a sea fight or a naval battle.
naupathia (s) (noun), naupathias (pl)
Motion sickness experienced by some people while traveling on water: In other words, naupathia is a term for "sea sickness".
nauropometer (s) (noun), nauropometers (pl)
An instrument for measuring the amount of cargo which a ship can carry while at sea.
nauscopia (s) (noun), nauscopias (pl)
The power or act of discovering ships or land at considerable distances: Nauscopia involves the ability to see something on oceans, or seas, and shores from far away.
nausea (s) (noun), nauseas (pl)
1. A feeling of discomfort in the region of the stomach, with aversion to food and a tendency to vomit.
2. Disgust; deep disgust, loathing; used in literature.

Nausea is a symptom of many conditions, including motion sickness, morning sickness during pregnancy, viral infections, and other diseases. It may also be the result of an adverse effect of many drugs.

In medicine, nausea is a particular problem during a few chemotherapy treatments and following general anesthesia. Nausea is also a common symptom of pregnancy.

While short-term nausea and vomiting are generally harmless, there are times when they may indicate a more serious disease. When associated with prolonged vomiting, it may cause dangerous levels of dehydration.

3. Etymology: from Latin nausea, "seasickness"; from Greek nausia, "seasickness, nausea"; from naus, "ship".
nauseant (s) (noun), nauseants (pl),
1. A medicine or agent that induces or causes diziness and vomiting.
2. Etymology: from Greek nausia, "seasickness, nausea, disgust" literally "ship-sickness," from naus, "ship".

Regardless of its etymology, nauseant never seems to have been applied only to seasickness.

nauseate (verb), nauseates, nauseated, nauseating
1. To have the unsettling feeling in the stomach that accompanies the urge to vomit.
2. To feel deep disgust or to make someone have a feeling of it.
nauseating (adjective), more nauseating, most nauseating
1. A reference to having the feeling or causing the feeling of nausea.
2. Descriptive of causing sickness of the stomach; such as, to cause contempt, disgust, loathing, etc. for something or someone: Regrettably, Sharon had to listen to the nauseating story presented to her by her physician.