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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 decemplex Having ten parts; decuple or tenfold. decemvir Any of two groups of 10 men selected in 451 and 450 B.C. to wield complete power over Rome and establish the laws of the Twelve Tables. decemviral Pertaining to the decemvirs of ancient Rome. decemvirate A group of ten people, especially (politics) a council of ten men sharing office or power and particularly (historical) the groups of ten men who reformed and codified Roman law circa 450 BCE. decenary Of or related to the number ten, (particularly) as a base of numeration. decennal Synonym of decennial, of or related to a 10-year period. decennalia The festival and religious rituals celebrating a Roman emperor's 10th year of rule. decennalian Synonym of decennial, of or related to a ten-year period. decennary Decennial: of or related to a ten-year period. decennium Synonym of decade: a ten year period. decennoval Of or related to the number nineteen. deceptious deceptive, tending to deceive. deceptory deceptive decerp To pluck off, to pick out, extract or gather. decertation contest for mastery; contention; strife decession departure; decrease deci- A tenth part. decidence A falling off or falling out: shedding. decim A tenth, (particularly) a tithe or tax of one-tenth. decime Synonym of tithing (a division of the hundreds of medieval England) decipiency hallucination or deception. decisor A rabbi who decides matters in Jewish religious law. declamator A declaimer. declaration of will A private outward manifestation of intention which is directly aimed at bringing about a legal effect. declinate Bent downward or aside. declinatory Containing or involving a declination or refusal, as of submission to a charge or sentence. declivitous Descending gradually; sloping; downhill. decoct To make an infusion. decollate To behead. decorament ornament decoratrix A female decorator. decorticate To peel or remove the bark, husk, or outer layer from something. decortication The removal of the surface layer, membrane, or fibrous cover of anything decree absolute the official decree marking the legal end of a marriage, allowing the two people to remarry. decree nisi a decree issued on a first petition for divorce; it becomes absolute at some later date unless cause is shown why it should not. decretist A student, or epert, of decretals or decrees. decrustation The removal of a crust (various senses). decuman Large; chief; applied to an extraordinary billow, supposed by some to be every tenth in sequence. decumbent Lying down; reclining on the ground. decumbiture The fact of lying down, specifically of a person due to illness. decurion An officer in charge of ten men in the ancient Roman army. decurionate The position or office of a decurion. decurrent Of plant parts: extending downward, most often in the case of leaf blades that partly wrap or have wings around the stem or petiole and extend down along the stem. decursion A flowing. decurt To cut short; to truncate; to curtail. decurtate Shortened, curtailed. decury A group of ten men under the command of a decurion. decussate Crossed; intersected; resembling a letter X. decussation A crossing or intersection of lines etc. so as to form an X-shape. decussorium An instrument for depressing the dura after trephining. dedecorate To bring to shame; to disgrace. dedecoration Disgrace; dishonour. dedecorous disgraceful; unbecoming dedendum The difference between the radius of the pitch circle of a gear and its root circle. dedicator One who dedicates. de dicto Taking the utterance in consideration, without having a particular referent in mind. de die ad diem From day to day. de die in diem From day to day. dedimus A writ to commission private persons to do some act in place of a judge, such as to examine a witness, etc. deditio In medieval Europe, an act of ritualized submission and request for mercy, performed before a monarch or other feudal lord. dedition yielding, surrender. dedolation A slicing wound made by a sharp instrument grazing the surface. dedolent Feeling no compunction; apathetic. deductor One who deducts something, particularly one who deducts tax from wages or deducts certain expenditures from payment of tax. deest Placed after a catalogue abbreviation to indicate that this particular work does not appear in it. de facto In actual use or existence, regardless of official or legal status. defatigable Easily tired or wearied; capable of being fatigued. defatigate Weary, fatigued, exhausted. defatigation Fatigue; weariness. defedation The process of polluting or making filthy; pollution. defensative Serving to protect or defend; defensive defensory Tending to defend; defensive. defervesce To experience an abatement or resolution of fever. defervescence The departure or subsiding of a fever. defiliation The separation of a child from its parents. definiendum The term (word or phrase) defined in a definition (whether inside a sentence, as a dictionary entry, or otherwise). defix To fix, fasten, or establish. deflagrate To burn with intense light and heat. deflexure A bending or turning aside; deflection. defluous Flowing down; falling off. deflux downward flow defluxion A flowing down; a running down. defraudation The act of defrauding; a taking by fraud. defrutum A reduction of must in Ancient Roman cuisine, made by boiling down grape juice or must in large kettles until reduced to half of the original volume. defunction Death. defunctive funereal or deathly degender To degenerate. degenerous Degenerate; base. deglutinate To loosen or separate by dissolving the glue which unites; to unglue. degression Descent, the act of descending. degustate To taste or eat. dehisce To burst or split open at definite places, discharging seeds, pollen or similar content. dehiscent Of or pertaining to dehiscence, i.e., a rupture, as with a surgical wound opening up, often with a flow of serous fluid. dehonestate To disparage. dehonestation An act of dishonouring or disgracing. dehort To dissuade. dehortation Advice against something; dissuasion. dehortatory designed to dehort (dissuade); dissuasive Deianira The third wife of Heracles. deificate To deify.