s.v.Used to refer to an entry in a dictionary or encyclopedia: under the word(s) [X]; at headword [X]; at entry [X].
swainmoteA court held before the verderers of the forest as judges, by the steward of the court, three times a year, the swains or freeholders of the forest composing the jury.
sybariticOf or having the qualities of a sybarite (“a person devoted to luxury and pleasure”); dedicated to excessive comfort and enjoyment; decadent, hedonistic, self-indulgent.
sycamineA tree, mentioned in Luke's Gospel, and thought to be the black mulberry.
syllepsisA figure of speech in which one word simultaneously modifies two or more other words such that the modification must be understood differently with respect to each modified word; often causing humorous incongruity.
syllogismusOmission of the conclusion of a syllogistic argument.
sylvaticOf or pertaining to woods or woodland organisms; sylvan
sylvicolineOf or relating to the Sylvicolinae or Sylvicolidae, former names for the family Parulidae, the New World warblers.
syncellusOne who holds an office in an Eastern Catholic or Orthodox Church roughly equivalent to that of an episcopal vicar in the Roman Catholic Church.
synchysisA complicated, interlocking word-order pattern in early Latin verse, demonstrated by Virgil and his contemporaries.
syngraphA document signed by both or all of the parties to a contract or bond.
synonymiaThe use of two or more synonyms together to amplify or explain a given subject or term. A kind of repetition that adds force.
syntagmatarchyA square formation of 256 soldiers arranged into sixteen files, sixteen ranks deep, led by a syntagmatarch; a syntagma.
tablinumAn anteroom in a house of ancient Rome, opening out of the atrium opposite the main entry and often containing the family statues and archives.
tabula rasaA mind, as of a newborn, free of any impressions, notions, ideas, etc.
tabulatophobiaAn irrational or intense fear of walking on, standing on, or being near floors.
tacendaThings that are not to be spoken about or made public.
tacetAn instruction indicating silence on the part of the performers of a piece.
TaciteanOf, pertaining to, or characteristic of Tacitus (Publius Cornelius Tacitus)
tacnodeA point of a curve where two or more osculating circles to the curve at that point are tangent, so that two branches of the curve have ordinary tangency at the double point.
tapetum lucidumA layer of tissue in the eye of many vertebrate animals, immediately behind or sometimes within the retina, that reflects visible light so as to increase the light available to the photoreceptors.
tapinosisA figure of speech whereby something is given less importance by the name given it than it merits.