Word origins

• nephro-Of or relating to the kidneys.
• nephronophthisisA genetic disorder of the kidneys which affects children.
• nephrosA kidney-like organ.
• nepionicimmature
• nepiophiliaSynonym of infantophilia.
• nepsisWakefulness and watchfulness; a state of sobriety following a period of catharsis.
• NerioA surname.
• nesioteinsular; of islands
• NesogaeanRelating to Nesogaea—Polynesia or Oceania, New Zealand excepted, with regard to the distribution of its animals.
• nesosilicateSynonym of orthosilicate.
• nestitherapyMedical treatment by reducing food intake.
• neuro-Relating to the nerves, nervous tissue, or the nervous system.
• neurophobiaAn aversion to or fear of neurology or the nervous system, especially among medical students or professionals intimidated by the complexity of neurological science.
• neuropilemaneuropil
• neurostheniaStrong reaction or overreaction of a nerve to a stimulus.
• neusisA line segment of prescribed length, fitted between two given curves, part of a line that passes through a given point.
• niobophylliteA triclinic brown mineral containing fluorine, hydrogen, iron, manganese, niobium, oxygen, potassium, silicon, sodium, and titanium.
• nipterThe ecclesiastical ceremony of washing the feet; maundy.
• Nisaeaa vast plain in Media, known for its namesake horse breed
• NisyrosA Greek island in the Dodecanese.
• nitro-nitrate, nitrogen
• noemaThe perceived as perceived
• noematachographA timing instrument, used to measure the duration of various cognitive tasks.
• noematicOf or relating to the understanding.
• nom-law, legislation
• nomiaAny of various ground-nesting halictid bees of the genus Nomia, native to Asia, many species of which have opalescent bands on the metasoma.
• -nomialDenotes an expression with a specified number of terms.
• -nomiconUsed to form nouns, referring to a book of knowledge on the specified topic.
• -nomicsThe rules of a discipline.
• nomismThe following of religious laws or commandments as the chief aspect of religiousness.
• nomismaMoney or currency (modern).
• nomo-law
• nomopelmousHaving a separate and simple tendon to flex the first toe, or hallux.
• nomophylaxA magistrate, in ancient Greece, who was the custodian of the texts of the law.
• nomotheticRelating to the underlying laws of a subject.
• nomotheticssystem defining laws or rules
• -nomya system of rules, laws, or knowledge about a body of a particular field; distribution, arrangement, management
• noocracyRule by intellect; a government which weds power with intelligence.
• noologyThe systematic study and organization of everything dealing with knowing and knowledge.
• noso-disease
• nosocomephobiaAn abnormal fear of hospitals.
• nosognosiaThe ability of a person to recognize his or her own medical disorder.
• nosopoeticProducing disease.
• nostomaniaan overwhelming desire to return to familiar surroundings, or to one's home
• nostophobiaA fear of, or aversion to, returning to one's home.
• nostosA homecoming, as after a long journey.
• notaeumThe back (upper surface) of a bird.
• notariumA bone formed of fused vertebrae behind the shoulder of many species of birds and pterosaurs.
• notho-Used to form names of taxonomic ranks of hybrids
• nothogenericRelating to a nothogenus.
• noto-south, southern
• notothyriumA triangular opening at the back edge of a brachiopod's brachial valve through which the pedicle may partially protrude.
• notoungulateAny of several extinct, hoofed, herbivorous mammals of the order †Notoungulata, from Cenozoic South America.
• noutheticBeing or relating to a form of Evangelical Protestant pastoral counseling based upon the Bible and focused on Christ.
• nychthemeronA period of one day and one night, a date: in the West, a period of 24 consecutive hours.
• nyct-Night or darkness.
• nyctalopiaThe inability to see clearly in dim light; night blindness
• nycti-Night.
• nyctitropicTurning or bending at night into different positions.
• nympho-nympha, nymphae (labia minora).
• nympholeptA person in a state of nympholepsy.
• obeliaAny of various colonial marine hydroids of the genus Obelia.
• obelionA craniometric point on the sagittal suture between the parietal foramina near the lambdoid suture.
• obelizeTo mark (a written or printed passage) with an obelus; to judge as spurious or doubtful.
• obolSynonym of obolus: a silver coin of Ancient Greece.
• ochlagogueA manipulator of a mob who holds sway by use of inflammatory rhetoric, casting opprobrium, and by appeal to the lowest common denominator generally; an extreme and wholly unscrupulous demagogue; one who practises ochlagogy.
• ochlesisCrowd-poisoning; a disease occasioned or aggravated by overcrowding, especially due to lack of ventilation.
• ochlo-Crowd, mob.
• ochlophobistA person with a phobia, or fear, of mob-like crowds, as opposed to simply open spaces like agoraphobia or large crowds as with enochlophobia.
• ocnophilA personality type characterised by avoidance of dangerous of unfamiliar situations, and the reliance on other people for security.
• octa-Eight.
• octachoronA four-dimensional object analogous to a cube, constructed out of eight cubes.
• octaeterisSynonym of octennium: An 8-year period, particularly (historical) in Greek calendrical and astronomical calculations.
• octakis-A variant of octo-, used for multiplication with a second numerical prefix: octakishexahedron
• octapodyA metre or verse of eight feet.
• octastichA poem or strophe of eight verses or lines.
• octo-eight
• octodontidAny of the Octodontidae, a family of rodents including the common degu (Octodon degus) and 12 other South American species
• OctoechosA liturgical book containing a repertoire of hymns ordered in eight parts according to the eight echoi (tones or modes), used in many rites of Eastern Christianity.
• -odeWay, path, travel.
• odmylA volatile liquid, said to have an unpleasant garlicky odour, obtained by boiling sulfur with linseed oil.
• odo-Relating to roads.
• odologyThe study of roads or paths.
• -odonttooth; toothed
• odontalgiatoothache
• -odontiabranch of dentistry
• odonto-tooth
• odontogenyThe generation, or mode of development, of the teeth.
• odontoidResembling a tooth, especially in shape
• odonymAn identifying name given to a street; a street name.
• odyleSynonym of od (“a hypothetical force or natural power, now proved not to exist, which was supposed by Carl Reichenbach and others to inhere in certain people and produce phenomena such as animal magnetism and mesmerism, and to be developed by various agencies, as by chemical or vital action, heat, light, magnets, etc.”).
• -odyniapain
• odynometerSynonym of algometer.
• odynophagiaSevere pain in the mouth or esophagus when attempting to swallow.
• odynophobiaA pathological fear of pain.
• ŒchaliaA city that was located in Ancient Greece.
• oecistA founder of a colony.
• ŒclesSon of Mantius and father of Amphiaraus.
• ŒniadæA city in Greece.
• oeno-wine (the alcoholic beverage)