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Word units starting with O
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125 pages.
O | Ob | Oc | Od | Oe | Oi | Ol | Om | On | Oo | Op | Or | Os | Ot | Ou | Ov | Ox | Oz
O
Ob
- ob- (Latin: prefix; before c, ob- becomes oc- ; before f, ob- becomes of- ; before g, ob- becomes og-; before p, ob- becomes op- ; before m, ob- becomes o-)
- obeso-, obes- (Latin: fat, corpulent)
- oblivio-, oblivi- (Latin: to forget)
- obscuro-, obscur- (Latin: dark, dusky; indistinct, uncertain, unintelligible)
- obtusi- (Latin: to blunt, dull; from ob- "against" plus tundere, "to beat, strike")
Oc
- occult- (Latin: secret, hidden, concealed)
- oceano-, ocean- (Greek > Latin: "the great river encompassing the whole earth"; hence, the "great Outward Sea" [as opposed to the "Inward" or Mediterranean]; the ocean)
- ocelli-, ocell- (Latin: "little eye", a diminutive of oculus, "eye"; spotted, dotted; as if with tiny eyes)
- ochemato-, ochemat- (Greek: any kind of carrier or vehicle; such as, a horse or ship)
- ochlo-, ochl- (Greek: mob [people])
- ochro-, ochr- (Greek: the color yellow; pale, wan, or sallow)
- ochtho-, ochth- (Greek: any elevation, bank, hill, mound)
- ocrea-, ocre- (Latin: husk, sheath)
- octa-, octo-, oct-, octi-, octon- (Greek > Latin: a number used as a prefix; eight, eighth)
- oculo-, ocul- (Latin: eye[s]; sight)
- ocy- (Greek: swift)
Od
- ode, -odal, -odeon, -ody (Greek > Latin: song, poem)
- Odeum (Greek > Latin: a hall for musical performances in ancient Greece and Rome)
- odium, odious (Latin: hatred, hateful, hate; bitterness; disgusting; offensive; opprobrium; annoyance)
- odo-, od-, -ode, -odic, -odically, hodo-, hod- (Greek: road, way, path)
- odonto-, odont-, odon-, -odont, -odonic, -odontic, -odontia, -odontoid (Greek: tooth, teeth)
- odori-, odoro- (Latin: smell [noun form])
- odyno-, odyn-, -odynia, -odynic,-odyne, -odyn, -dyne, -dynia (Greek: pain)
Oe
Oi
Ol
- -olatry, -olatrous (worship) words: angelolatry to zoolatry
- oleo-, ole-, -oleic, ol- (Greek > Latin: [olive] oil; fat)
- olero-, oler-, -oleri, olit- (Latin: vegetables, greens)
- olfacto-, olfact- (Latin: to smell; pertaining to the sense of smell)
- oligo-, olig- (Greek: few, small; abnormally few or small; used as a prefix)
- olive- (Greek > Latin > French: the tree Olea europaea, used in its etymological sense)
- -ologist (Greek: a suffix; one who speaks about, writes about, or studies)
- -ology (Greek: a suffix; talk, speak, one who deals with a specific topic, one who speaks [in a manner])
Om
- -oma, -ome, -omatoid (Greek: tumor, morbid growth; to swell, bulge; mass, group)
- ombro-, ombr- (Greek: rain, rainstorm)
- omega (Greek: the ending, the last of anything; the 24th and last letter of the Greek alphabet)
- omento-, oment- (Latin: fat, adipose tissue; and by extension, caul, intestines)
- omicron (Greek: the fifteenth letter of the Greek alphabet)
- ommato-, ommat- (Greek: eye)
- omni-, omn- (Latin: all, every)
- omo- (Greek: raw, unripe)
- omo-, om- (Greek > Latin: shoulder)
- omphalo-, omphal- (Greek: navel, umbilicus; pertaining to the navel or to the umbilicus)
On
- onco- (Greek: barb, hook)
- onco-, oncho-, -oncus (Greek: "mass, bulk"; denotes relationship to a tumor, swelling, or mass)
- oneiro-, oneir-, oniro-, onir-, -neir- (Greek: dream)
- onio- (Greek: sell, for sale)
- onomato-, onoma-, onomo-, onom-, ono- (Greek: name; word)
- onto-, ont- (Greek: a being, individual; being, existence)
- onycho-, onych-, ony-, -onychia, -onychial, -onychium, -onyx- (Greek: (claw, nail; finger nails, toe nails)
- -onym, -nym (name) words: acronym to typonym.
Oo
Op
- op-, opt-, -opia, -ops, -opsia, -opsis, -opsy, -optic, -opic, -opy (Greek: eye[s]; sight; see, vision)
- oper-, opus (Latin: work)
- ophio-, ophi-, -ophid, ophidio-, -ophidia, -ophis (Greek: snake, serpent)
- ophthalmo-, ophthalm-, -ophthalmia, -ophthalmic, -ophthalmos (Greek: eye; sight)
- opio-, opi- (Greek > Latin: poppy juice; from the juice of plants or fruits)
- opistho-, opisth- (Greek: backward; behind, at the back, after, posterior)
- opo-, op- (Greek: juice)
- opo-, op-, opsi-, opso- (Greek: eye; by extension, face)
- opsi-, ops- (Greek: late, later)
- opsino-, opso-, opsoni- (Greek: boiled meat)
- opsono-, opson-, -opsony (Greek: to buy food; to purchase provisions, such as food)
- optico-, opt-, opti-, optic-, opto- (Greek: sight)
- opulen (Latin: wealth, wealthy, rich [power, might; abundance, plenty])
Or
- -or (Latin: a suffix; state of, result of; he who, that which)
- ora-, or-, orat- (Latin: talk, speak, say; mouth, face; opening, entrance)
- -orama, -oramic, -rama (Greek: used as a suffix; view; sight; see, that which is seen)
- orb-, orbito- (Latin: rut or track made in the ground by a wheel; circle, ring, round surface, disk)
- orc-, orca- (Greek > Latin: a kind of whale; large sea creature)
- orches- (Greek: dance, pertaining to dancing)
- orchido-, orchid- (testes, testicles) words: anorchism to vaso-orchidostomy.
- ord-, ordinato-, -ordin-, -ordinate, -ordinating, -ordinated (Latin: order, row, regular series, class, rank)
- orexi-, orex-, -orexia, -orexic, -oretic, -orectic, -rexia (Greek: appetite [hunger]; to stretch out for; to desire)
- orgado-, orgad- (Greek: open woodland, meadow, field)
- organo-, organ- (Greek: an organized structure; pertaining to a specific bodily part with a specific function or set of functions; instrument, tool, implement)
- orgasm, orgasms, orgasmic, orgastic (Greek > Latin > French: excitement or violent action in an organ or part)
- -oria (Latin: a suffix; a place used for something)
- oriri-, orir-, ori-, or- (Latin: to rise, be born; the rising sun, east; to rise, become visible, appear)
- -orium, -oria, -ory (Latin: a suffix; a place or a thing used for something)
- ornitho-, ornith-, -ornithic, -ornithes, -ornithoid, -ornis- (Greek: bird)
- oro- (Greek: whey, serum)
- oro-, or-, ori- (Latin: mouth, face; pertaining to the "mouth")
- oro-, oreo-, ore-, oreino-, orein- (Greek > Latin: mountain; hill)
- -orrhexis, -rhexis, -rrhexis (Greek: used as a suffix; rupture of an organ or vessel; a breaking forth, bursting)
- ortho-, orth- (Greek: right, straight, correct, true; designed to correct)
- -ory (Latin: a suffix; tending to, serving for; place for, appratus)
- orycto-, oryct- (Greek: fossil, mineral; dug, dig; literally "thing dug")
- oryzo, oryz-, oryzi- (Greek > Latin: rice)
Os
- os-, or- os [singular], ora [plural] (Latin: mouth)
- os-, oss-, ost-, oste- os [singular] or ossa [plural] (Latin: bone)
- oscheo-, osche- (Greek: scrotum; a combining form denoting relationship to the scrotum)
- oscillo-, oscill- (Latin: swing, vibrate; from oscillum, a diminutive form of oso[ris] "mouth, face", meaning "small face")
- oscit- (Latin: yawning, the act of yawning; to gape)
- oscula- (Latin: kiss; from "little mouth"; lip [diminutive of os-, "mouth"])
- -ose (-iose)
- -ose (-iose)
- -osis, -sis, -sia, -sy, -se (Greek > Latin: a suffix; actor, process, condition, or state of; result of; expresses a state or condition [of some disease])
- osmo-, osmia-, osmi-, -osmia, -osmatic (Greek: impulse, thrust, push, impel)
- osmo-, osmia-, osmi-, osm-, -osmia, -osmatic (Greek: odor; smell, smelling)
- osphresio-, osphresi- (Greek: to smell; pertaining to odor or to the sense of smell)
- osphyo-, osphy- (Greek: loin)
- osseo-, osse-, ossi- (Latin: bone, bony)
- osteo-, oste-, ost- (Greek: bone)
- ostraco-, ostrac-, -ostraca, -ostracan (Greek: [hard] shell; creatures having or characterized by a type of shell)
- ostreo-, ostra-, ostre-, ostrei-, ostri-, ost- (Greek: oyster)
- ostro- (Latin: east)
Ot
Ou
Ov
Ox
Oz
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