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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 perflable Capable of being blown through; permeable to air currents. perflation The act of perflating, or blowing through. perforans The long flexor muscle of the toes, or the deep flexor muscle of the fingers. perforatus The short flexor of the toes, or the superficial flexor of the fingers. perfricate To rub over. perfriction A severe chill perfuse To permeate or suffuse something, especially with a liquid or with light. Pergamene Of, from or relating to Pergamum. pergamentaceous Reminiscent of parchment. perhorresce To shudder (at). Periboea A female given name periclitate To endanger. periclitation The state of being in peril. pericoeruleus Surrounding the locus coeruleus pericranium The membrane (or periosteum) which covers the outer surface of the skull. periculous dangerous, hazardous, perilous periculum accident or casus, as distinguished from dolus and culpa, and hence relieving one from the duty of performing an obligation perilune The point of an elliptical lunar orbit where the distance between the satellite and the Moon is at its minimum. per impossibile As is impossible. peripartum That occurs around the time of labor and childbirth (parturition) (typically, within a few weeks before, intrapartum, or within a few weeks after). periphrase The use of more words than are necessary to express the idea; a roundabout, or indirect, way of speaking; circumlocution. peripneumonic pneumonic (of or pertaining to pneumonia (an inflammation of the lungs)) perissology Superfluity of words; verbosity; long-windedness. peristylium A peristyle. peristylum A peristyle. perite skilled peritus A Roman Catholic theologian attending an ecumenical council to give advice. perizoma A loincloth worn by men and women in ancient Greece. perjurious Of or pertaining to perjury. perlative Describes a case, in very few inflected languages, that expresses movement through or along a referent noun, as "along" in "they travelled along the river". perlection the reading through of something. per litt. By letter; in a message to the author. perlustrate To travel through an area in examination or survey. permansion Permanence. permansive permanent, stative, maintaining the same state permeance A measure of the degree to which a material allows a fluid to permeate it. per mensem monthly; by the month permiscible Capable of being mixed. permonish To warn, to admonish per nasum via the nose pernicity swiftness; celerity pernio Synonym of chilblain. pernoctate To stay up all night; to pass the night (especially in prayer). peronate sheathed with a covering peroneum A small sesamoid bone in the foot found in some humans. perorate To speak or declaim at great length, especially in a pompous or grandiloquent manner; to harangue. perpend To ponder, consider. perpession suffering; endurance perpetratrix female perpetrator perpetuum mobile A perpetual motion machine. perpotation excessive drinking; boozing per procurationem by the agency of, especially when signing a letter in place of someone else perquire Exactly. perridiculous Thoroughly ridiculous. per saltum At a single leap; all at once. perscopate to bristle or horripilate perscrutate To scrutinize, peruse, inspect (something). perscrutation A thorough searching; a minute inquiry or scrutiny. per se Without determination by or involvement of extraneous factors; by its very nature. persecutrix A female persecutor. perses A Titan, son of Crius and Eurybia Persic Synonym of Persian. persona grata A person who is welcome or acceptable. persona muta A nonspeaking role, a silent actor. personate To fraudulently portray another person; to impersonate. perspectograph A specialized instrument used to render objects in perspective, available in a range of shapes and sizes. perspicable discernible perspicience The act of looking sharply; keen vision. perspicil An optical glass; a telescope. perspirable Capable of being perspired. perspirative Performing the act of perspiration or sweating; perspiratory. per stirpes A method of distributing an estate to the descendants or heirs of a deceased legatee in which the estate is divided equally among the branches of a family or designated heirs, without regard to differing numbers of people in different branches. perstringe To censure; criticize. persuasory Persuasive. persufflation The technique of gently streaming oxygenated air through the blood vessels of a chilled organ for the purpose of organ preservation. pertinaciously In a stubbornly resolute manner; tenaciously holding one's course of action or opinion. pertinacy The quality or state of being pertinent; pertinence. pertinency The quality of being pertinent to the matter at hand; relevance. pertingent Touching; having direct contact with. pertransient Passing through; transient. perturbate To perturb. pertuse pierced or punched with holes pertusion The act of punching or piercing with a pointed instrument. perula One of the scales of a leaf bud. Perusia An ancient Etruscan and later Roman city which eventually became present-day Perugia, Italy. pervasion The act of pervading; permeation; suffusion. pervention A coming or arrival; advent perversive Tending to pervert. pervestigate To investigate thoroughly. pervestigation thorough investigation pervicacious Extremely stubborn or headstrong; wilful, obstinate. pervicacity obstinacy; pervicaciousness pervicacy Pervicacity; stubbornness. pervigilation Careful watching. pervigilium Insomnia. pervulgate To publish. pessimize To take a pessimistic view of; to speak of in a negative or pessimistic way. pessimum A worst or lowest point. pessulus A delicate bar of cartilage connecting the dorsal and ventral extremities of the first pair of bronchial cartilages in the syrinx of some birds. pestiferous Containing organisms that cause contagious diseases.