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purist (n.)[purist 词源字典]: "stickler for purity," 1706, from pure + -ist; on model of French puriste (1580s), originally in reference to speech.[purist etymology, purist origin, 英语词源]
Puritan (n.): 1560s, "opponent of Anglican hierarchy," later applied opprobriously to "person in Church of England who seeks further reformation" (1570s), probably from purity. Largely historical from 19c. in literal sense. After c. 1590s, applied to anyone deemed overly strict in matters of religion and morals.
What [William] Perkins, and the whole Puritan movement after him, sought was to replace the personal pride of birth and status with the professional's or craftsman's pride of doing one's best in one's particular calling. The good Christian society needs the best of kings, magistrates, and citizens. Perkins most emphasized the work ethic from Genesis: "In the swaete of thy browe shalt thou eate thy breade." [E. Digby Baltzell, "Puritan Boston and Quaker Philadelphia," 1979]
puritanical (adj.): c. 1600, from Puritan + -ical. Chiefly in disparaging use. Related: Puritanically.
Puritanism (n.): 1570s, from Puritan + -ism. Originally in reference to specific doctrines; from 1590s of excessive moral strictness generally. In this sense, famously defined by H.L. Mencken (1920) as "the haunting fear that someone, somewhere may be happy."
purity (n.): c. 1200, from Old French purete "simple truth," earlier purte (12c., Modern French pureté), from Late Latin puritatem (nominative puritas) "cleanness, pureness," from Latin purus "clean, pure, unmixed; chaste, undefiled" (see pure (adj.)).
purl (v.1): "knit with inverted stitches," 1825; earlier "embroider with gold or silver thread" (1520s), probably from Middle English pirlyng "revolving, twisting," of unknown origin. The two senses usually are taken as one word, but even this is not certain. Klein suggests a source in Italian pirolare "to twirl," from pirolo "top." As a noun, from late 14c. as "bordering, frills," 1530s as "twisted thread of gold and silver."
purl (v.2): "flow with a murmuring sound," 1580s, imitative, perhaps from a Scandinavian language. Related: Purled; purling.
purloin (v.): mid-14c., "remove, misappropriate," from Anglo-French purloigner "remove," Old French porloigner "put off, retard, delay, drag out; be far away," from por- (from Latin pro- "forth;" see pro-) + Old French loing "far," from Latin longe, from longus (see long (adj.)). Sense of "to steal" (1540s) is a development in English. Related: Purloined; purloining.
purple (n., adj.): Old English purpul, dissimilation (first recorded in Northumbrian, in Lindisfarne gospel) of purpure "purple dye, a purple garment," purpuren (adj.) "purple," a borrowing by 9c. from Latin purpura "purple color, purple-dyed cloak, purple dye," also "shellfish from which purple was made," and "splendid attire generally," from Greek porphyra "purple dye, purple" (see porphyry), of uncertain origin, perhaps Semitic, originally the name for the shellfish (murex) from which it was obtained. Purpur continued as a parallel form until 15c., and through 19c. in heraldry. As a color name, attested from early 15c. Tyrian purple, produced around Tyre, was prized as dye for royal garments.

Also the color of mourning or penitence (especially in royalty or clergy). Rhetorical for "splendid, gaudy" (of prose) from 1590s. Purple Heart, U.S. decoration for service members wounded in combat, instituted 1932; originally a cloth decoration begun by George Washington in 1782. Hendrix' Purple Haze (1967) is slang for "LSD." Purple finch so called from 1826; "the name is a misnomer, arising from the faulty coloring of a plate by Mark Catesby, 1731" [Century Dictionary] Also house finch, so called for its domesticity.
purple (v.): c. 1400, from purple (n.). Related: Purpled; purpling.
purplish (adj.): 1560s, from purple (n.) + -ish.
purport (n.): early 15c., from Anglo-French purport (late 13c.), Old French porport "contents, tenor," back-formation from purporter "to contain, convey, carry," from pur- (from Latin pro- "forth;" see pur-) + Old French porter "to carry," from Latin portare "to carry" (see port (n.1)).
purport (v.): early 15c., "indicate, express, set forth," from the noun in English and from Anglo-French purporter (c. 1300), from Old French purporter (see purport (n.)). Related: Purported; purporting.
purportedly (adv.): "allegedly," 1949, from past participle of purport (v.) + -ly (2).
purpose (n.): c. 1300, "intention, aim, goal," from Anglo-French purpos, Old French porpos "aim, intention" (12c.), from porposer "to put forth," from por- "forth" (from Latin pro- "forth;" see pur-) + Old French poser "to put, place" (see pose (v.1)). On purpose "by design" is attested from 1580s; earlier of purpose (early 15c.).
purpose (v.): late 14c., from Anglo-French purposer "to design," Old French porposer "to intend, propose," variant of proposer (see propose).
purposeful (adj.): 1835, from purpose (n.) + -ful. Related: Purposefully.
purposeless (adj.): 1550s, from purpose (n.) + -less. Related: Purposelessly; purposelessness.
purposely (adv.): late 15c., from purpose (n.) + -ly (2).
purposive (adj.): 1849, from purpose + -ive.