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All derived from 9,053 borrowed from 5,710 learned borrowing from 1,127 calque of 209 semantic loan from 2 obstination stubbornness obstriction The state of being constrained, bound, obliged, or obligated. obstupefaction stupefaction obtected covered; protected obtemperate To obey, comply or submit to. obtend To oppose; to hold out in opposition. obtenebration The act of darkening, or darkness. obtension The act of obtending. obtest To implore, beseech, plead, beg. obtestation The act of obtesting; supplication; protestation. obtrude To proffer (something) by force; to impose (something) on someone or into some area. obtruncate To truncate or lop the head off, to decapitate (also figurative). obtruncation The act of lopping or cutting off. obtund To reduce the edge or effects of; to mitigate; to dull. obtundent A substance which sheathes a part, or blunts irritation, usually some bland, oily, or mucilaginous matter; – nearly the same as demulcent. obturaculum A plug of connective tissue separating the hemocoels of the head and thorax of some lice obturate To block up or obstruct. obturation The act of stopping up, or closing, an opening. obtusangular obtuse-angled obtusity obtuseness obumbrate To shade; to darken; to cloud. obumbration The act of darkening or obscuring; obnubilation; obscuration. obuncous Crooked; bent. obvallate To surround with, or as with, a wall. obvention The act of happening incidentally; that which happens casually; an incidental advantage. obversant conversant; familiar or in the know about a certain topic. obversion The act of turning toward or downward. obvolute overlapping; contorted; convoluted obvolve To enfold or wrap around; to cover by wrapping. obvolvent Curved downward or inward. occasive Of or pertaining to the setting sun occecation The act of making blind occiduous Western; occidental. occipital bone The bone at the back of the skull in humans and various other animals. occluse shut; closed occupate To occupy. occurse Synonym of occursion (“joining or striking together”). occursion A meeting or striking together; a clash or collision. Oceanid Any of the daughters of Oceanus and Tethys; a sea-nymph. Ocean of Storms A basin on the near side of the Moon. ocellation The development of eye-like markings, such as those on the wing of a butterfly or tail of a peacock. ocelloccipital Relating to the ocellus and the occiput ocellus A simple eye consisting of a single lens and a small number of sensory cells. ocrea A sheath around a plant stem forming from the stipule of a leaf and extending above the point of insertion of the leaf. octans A small circumpolar constellation of the southern sky, said to resemble an octant. It lies closest to the southern celestial pole of any constellation. octic Of the eighth degree or order. octofid Cleft or separated into eight segments. octogenary Of or related to the number 80, particularly octogintillion 10²⁴³ octonarius A verse having eight metrical feet. octonary Of eighth rank or order. octovir Any member of a group of eight officials. octovirate A group of eight people, especially (politics) a council of eight men who share office or rule. ocularium A vision slit in a helmet. oculate IPA⁽ᵏᵉʸ⁾: /ˈɒkjʊlət/ oculiform Having the shape of an eye Oculi Sunday The third Sunday in Lent. oculolinctus A paraphilia involving licking the eyeballs. Odaenathus Septimius Odaenathus, the first king of the Palmyrene kingdom, who reigned from A.D. 260 to A. D. 267 odible Fit to excite hatred; hateful, odious. odium generis humani Hatred for the human race. Odoacer Flavius Odoacer, the first king of Italy odorament Something which gives off a scent; an odoriferous substance. odorate odorous odorometer A device used to measure the intensity of a smell Oeagrus A king of Thrace, father of Orpheus. oecium The household common to the individuals of a compound organism. oeconomus A married priest (chiefly Orthodox Christian and Uniate usage), as opposed to a hieromonk. oecus An apartment, room, or hall in an ancient Roman dwelling house. oenomel A beverage made of wine and honey. Oenone The first wife of Paris of Troy, whom he abandoned for Helen. Oenus A river in Laconia which flows into the Eurotas, now Kelefina oestrum A biting insect; a gadfly or botfly. oesypum Refuse from wool. of blessed memory Honorific epithet used parenthetically to mark a beloved person as being deceased. offerture offer; proposal -oid Resembling; having the likeness of (usually including the concept of not being the same despite the likeness, but counterexamples exist). -ol An alcohol or phenol. -ola Used to form the names of several commercial companies and products. -ole in the Hantzsch–Widman nomenclature for naming heterocycles, denotes an unsaturated five-membered ring system with nitrogen oleamen A soft ointment prepared from oil. oleiferous That produces oil olent scented Olenus A town of Achaia, situated on the left bank of the river Peirus oleo- oil or oil-based materials oleogustus A proposed basic taste sensation triggered by fatty acids. oleosaccharum An oil-sugar; a preparation made by saturating thirty grains of sugar with one drop of volatile oil. oleose oily oleraceous Relating to potherbs. olfact To smell. olfactible Having an odor; capable of being smelled. olfactic Referring to the olfactory senses or the sense of smell. olfacto- smell olid evil-smelling; fetid. olitory Of or pertaining to a kitchen garden; used for culinary purposes. olusatrum An umbelliferous plant, the common alexanders, found in Western Europe (Smyrnium olusatrum). Olynthus An ancient city in Chalcidice, modern Chalkidiki regional unit, Greece. omasum The third compartment of the stomach of a ruminant; the lining of said compartment, regarded as a foodstuff. ominate To be an omen for (something); to foreshow, to presage. omination presage; omen.