Word origins

• SeptimontiumA festival celebrated by the inhabitants of the seven hills where Rome would be founded.
• septiremeA heavy ancient Greek warship.
• septrionalOf or coming from northern regions.
• septua-Seven.
• septuagenaryOf or related to the number seventy, particularly
• SeptuagesimaA Sunday in the Christian calendar nine weeks before Easter Sunday.
• septuaryBeing seven in number.
• septulumA little septum; a division between small cavities or parts.
• septupleSeven times as much; sevenfold.
• septuplexSevenfold; made up of seven parts.
• septuplinervedHaving seven nerves.
• sepultburied.
• sequaciousLikely to follow or yield to physical pressure; easily shaped or molded.
• sequacityQuality or state of being sequacious.
• sequaniumAn early name for the element neptunium, based on a discredited claim of discovery.
• sequence of tensesSynonym of consecutio temporum.
• serapeumA temple or other religious institution dedicated to the syncretic Greco-Egyptian deity Serapis.
• Serbonian BogA wetland in Egypt, famed for falsely appearing to be solid land.
• SerianSynonym of Chinese or Northern Chinese, chiefly in the context of ancient Greco-Roman knowledge of China and its role as the origin of silk.
• seriateTo arrange in serial order.
• seriatuma series, a sequence
• sericSynonym of silken, made of silk.
• SericanSynonym of Chinese or Northern Chinese, chiefly in the context of ancient Greco-Roman knowledge of China.
• sericeousOf or relating to silk; consisting of, or resembling silk; silky.
• sericinA water-soluble glycoprotein that binds the two fibroin filaments of a silk fibre.
• sermocinationThe making of speeches or sermons; sermonizing.
• sermocinatorOne who makes sermons or speeches; a preacher.
• serolinA fatty substance found in the blood, probably a mixture of fats, cholesterol, etc.
• serotineAny of the genus Eptesicus of several small bats.
• serotinousSynonym of serotine (“developing at a later time or later in a season, especially than is customary with allied species; specifically (botany), of a plant: flowering late in a season”).
• Serpens CaputThe western half of the northern constellation Serpens, said to resemble a snake. It is said to represent the head end of the snake.
• Serpens CaudaThe eastern half of the northern constellation Serpens, said to resemble a snake. It is said to represent the tail end of the snake.
• serpentariaThe fibrous aromatic root of the Virginia snakeroot (Aristolochia serpentaria).
• serpentiformHaving the form of a snake.
• serpentigenousBred of a serpent
• serpiginouscreeping, advancing
• serpulaAny of numerous species of tubicolous annelids of the genus Serpula and allied genera of the family Serpulidae that secrete a calcareous tube, usually irregularly contorted, but sometimes spirally coiled, with a wreath of plumelike and often bright-colored gills around its head, and usually an operculum to close the aperture of its tube when it retracts.
• serratiformSaw-shaped.
• serratureA notching, like that between the teeth of a saw, in the edge of anything.
• serrousLike the teeth of a saw; jagged.
• serrulaA kind of tooth found in spiders.
• servile artsTraining or education that focuses on utilitarian skills, aimed towards employability rather than the development of a free individual.
• servitrixA female servitor.
• servitudinalOf or relating to servitude.
• servo-controlled
• sesamumsesame
• sesqui-1½; 1½ times
• sesquialterSynonym of sesquialterate, 1½ times.
• sesquialteraA ratio of 3 to 2 or 1½ to 1.
• sesquialteralSynonym of sesquialterate, 1½ times.
• sesquialteranSynonym of sesquialterate, in the proportion of 3 to 2 or 1½ to 1.
• sesquialterousSynonym of sesquialteral, having a band or dot occupying a third of a wing.
• sesquiennialOccurring once every one and a half years (i.e. once every 18 months, or twice every three years); sesquiannual.
• sesquipedalMeasuring or containing a foot and a half.
• sesquipedalianLong; polysyllabic.
• sesquipedalianismThe practice of using long, sometimes obscure, words in speech or writing.
• sesquitertianHaving the ratio of one and one third to one (as 4:3).
• sestertiumA money of account equal to 1000 sestertii.
• setigerAn annelid having setae; a chaetopod.
• setiparousProducing setae.
• setiremeAn oar-like swimming leg of an insect) having a fringe of hairs on the margin.
• setoseThickly set with bristles or bristly hairs.
• setulaA small, short hair or bristle; a small seta
• sevum benzoinatumbenzoinated suet
• sevum preparatumPrepared mutton tallow; the internal fat of the abdomen of the sheep, purified by melting and straining and used to make ointments.
• sex-A form of sexa-, meaning six.
• sexa-Six.
• sexagenarianSynonym of sixtysomething: a person between 60 and 69 years old.
• sexagenaryContaining sixty years.
• sexagesmSynonym of sexagesimal: a sixtieth part of something.
• sexangleSynonym of hexagon (“a polygon with six sides and six angles”).
• sexdecillion10⁵¹.
• sexenarysenary (proceeding by sixes or in a base of six)
• sexenniumA period of six years.
• sexfidcleft into six
• sextainA stanza of six lines; a sestine or sestina.
• sextansA Roman coin worth one sixth of an as.
• sextariusA Roman unit of liquid measure reckoned as the volume of 1+²⁄₃ Roman pounds of wine and equivalent to about 0.54 L although varying slightly over time.
• sextatemethylcyclohexyl acetate
• sextuplea sixfold amount
• sextuplicateSix times the number, volume, length, etc. (of something else).
• sexuo-Of or concerning sexuality.
• sexvirAny member of a group of six officials.
• sexvirateA group of six men, especially (politics) a council of six men who share office or rule, particularly (historical) various such councils in ancient Rome.
• sexy primeEither of a pair of prime numbers that differ by six.
• sibilateTo hiss.
• sibilationA hissing sound.
• sibilousHaving a hissing sound; sibilant.
• sibyllineOf or pertaining to or resembling a sibyl or female oracle, especially the Cumaean Sibyl and the Sibylline Books.
• SicariusAny of a group of Jews who attempted to expel the Romans from Judea using concealed daggers.
• sicca syndromeSynonym of Sjögren's syndrome
• siccateTo dry.
• siccationThe act or process of drying.
• siccativeA drier; a catalyst used to promote drying.
• siccimeterA device for measuring evaporation.
• siccityDryness.
• SicelA member of an Italic tribe who inhabited eastern Sicily during the Iron Age.
• sicilicusA diacritic, resembling a 180°-rotated ‘C’ (i.e., being similar in appearance to ⟨ᵓ⟩), written atop a consonant to mark gemination, superseded in Classical Latin by doubling the letter representing the geminated consonant.
• sic proUsed to note an error in text as quoted and to supply the supposed intended meaning
• sic semper tyrannisThus always to tyrants; tyrannical leaders will inevitably be overthrown.