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algorithm

[al-guh-rith-uhm]

noun

an ordered set of instructions applied repeatedly to data to solve a problem or accomplish a task.

Explanation

Algorithm is a variant of algorism and ultimately comes from Arabic al-KhwārizmÄ«, which refers to the 9th-century mathematician Muáž„ammad ibn MĆ«sā al-KhwārizmÄ«. In this name, Khwārizm refers to an area of Central Asia now divided between Turkmenistan and Uzbekistan. Algorism became algorithm because of the influence of Ancient Greek arithmĂłs, “number,” as in arithmetic. Algorithm was first recorded in English in the 1690s. EXAMPLE OF ALGORITHM USED IN A SENTENCE The data scientist applied a simple algorithm and solved the frustrating puzzle in less than 3 seconds.

zaffer

[zaf-er]

noun

an artificial mixture, resembling smalt, containing cobalt oxide and, usually, silica, used to produce a blue color in glass and in ceramic glazes.

Explanation

For the origin of zaffer, “a cobalt oxide–silica mixture used to produce a blue color,” let’s travel down a linguistic rabbit hole. Zaffer, from French safre or Italian zaffera, may come from Arabic ’aáčŁfar, “yellow,” which resembles but is not related to saffron and sulfur. Alternatively, zaffer may come from Latin sapphÄ«ra, “sapphire,” via Ancient Greek sĂĄppheiros, “lapis lazuli,” from a Semitic source akin to Hebrew sappÄ«r, “sapphire.” One intriguing proposal is that sappÄ«r and its close Semitic relatives come from Sanskrit ƛanipuriya, “dear to Saturn,” equivalent to Úani, the planet Saturn, plus priyĂĄ-, “dear.” Zaffer was first recorded in English circa 1660. EXAMPLE OF ZAFFER USED IN A SENTENCE The glass blower used zaffer to make the vase a beautiful hue of azure.

barococo

[bar-uh-koh-koh]

adjective

excessively ornate or fussy in artistic or architectural style.

Explanation

Barococo, “excessively ornate in style,” is a portmanteau, or blend, of baroque and rococo, two words of complicated origins. Baroque is a borrowing from French and comes from older Portuguese barroco or Spanish barrueco, “irregularly shaped pearl,” and from here, numerous linguists have weighed in with their ideas. Perhaps there is a link to Spanish berruca, “wart” (from Latin verrĆ«ca). Rococo is also borrowed from French and derives from Medieval Latin rocca, “rock,” which may come from a Celtic source or, alternatively, Latin rĆ«pēs, “cliff.” Barococo was first recorded in English in the mid-1920s. For more examples of portmanteaux, check out this article. EXAMPLE OF BAROCOCO USED IN A SENTENCE The guests’ eyes bulged and jaws dropped when they entered the foyer, which had been renovated in a barococo style.

moiré

[mohr]

adjective

in silks or fabrics, presenting a watery or wavelike appearance.

Explanation

MoirĂ©, “presenting a watery or wavelike appearance,” is a borrowing from French and means “given a finish resembling moire.” Moire is likely an adaptation of English mohair, which makes moirĂ© a reborrowing, or a word that is borrowed back into its language of origin, similar to anime and the Word of the Day yĂ©-yĂ©. The term mohair comes via Italian from Arabic mukhayyar, “choice, chosen,” from the verb khayyara, “to choose.” This means that mohair is not related to hair, although folk etymology may suggest it is. For more examples of folk etymology, take a look at the Words of the Day cathartic, eggcorn, and ferrule. MoirĂ© was first recorded in English in the 1650s. EXAMPLE OF MOIRÉ USED IN A SENTENCE He saw moirĂ© patterns everywhere, even in insect screens rustling in the breeze.

mehndi

[men-dee]

noun

the art or practice of painting elaborate patterns on the skin with henna.

Explanation

Mehndi, “the art of painting patterns with henna,” is a borrowing from Hindi. Hindi and numerous other languages of the Indian subcontinent (including Bengali, Marathi, and Punjabi) come from Sanskrit. In this way, the earliest known source of mehndi is Sanskrit mendhÄ« (also mendhikā), “the henna plant,” which is of uncertain origin. Today, although most languages that descended from Sanskrit are spoken in India and its adjacent countries, Romani is among a handful spoken elsewhere in Eurasia. Mehndi was first recorded in English in the late 1990s. EXAMPLE OF MEHNDI USED IN A SENTENCE Her sister practiced the beautiful, intricate patterns of mehndi on us.