ÉCARLATE [ n.f.]
Du latin médiéval scarlatum, altération du persan saquirlat. Désigne un colorant rouge obtenu à partir d'œufs de cochenille, ou de brasil, bois importé. Le terme emprunté à l'arabe désignait également un drap fin (d'abord bleu, puis rouge) qui aurait eu des vertus médicinales.
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sgarlaid
scarlet, Irish sgárlóid, Middle Irish scarloit; from Middle English scarlat, scarlet, Medieval Latin scarlatum. Stokes and K.Meyer take it direct from Latin
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Scarlet
Scar"let (?), n. [OE. scarlat, scarlet, OF. escarlate, F. écarlate (cf. Pr. escarlat, escarlata, Sp. & Pg. escarlata, It. scarlatto, LL. scarlatum), from Per. sakirlāt.] A deep bright red tinged with orange or yellow, -- of many tints and shades; a vivid or bright red color.
2. Cloth of a scarlet color.

All her household are clothed with scarlet. Prov. xxxi. 21.
Scarlet
Scar"let, a. Of the color called scarlet; as, a scarlet cloth or thread. Scarlet admiral (Zoöl.), the red admiral. See under Red. -- Scarlet bean (Bot.), a kind of bean (Phaseolus multiflorus) having scarlet flowers; scarlet runner. -- Scarlet fever (Med.), a contagious febrile disease characterized by inflammation of the fauces and a scarlet rash, appearing usually on the second day, and ending in desquamation about the sixth or seventh day. -- Scarlet fish (Zoöl.), the telescope fish; -- so called from its red color. See under Telescope. -- Scarlet ibis (Zoöl.) See under Ibis. -- Scarlet maple (Bot.), the red maple. See Maple. -- Scarlet mite (Zoöl.), any one of numerous species of bright red carnivorous mites found among grass and moss, especially Thombidium holosericeum and allied species. The young are parasitic upon spiders and insects. -- Scarlet oak (Bot.), a species of oak (Quercus coccinea) of the United States; -- so called from the scarlet color of its leaves in autumn. -- Scarlet runner (Bot.), the scarlet bean. -- Scarlet tanager. (Zoöl.) See under Tanager.
Scarlet
Scar"let, v. t. To dye or tinge with scarlet. [R.]
The ashy paleness of my cheek Is scarleted in ruddy flakes of wrath. Ford.
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Note added at 2002-04-17 21:50:10 (GMT)
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Also
I would like to suggest that Arabic Saqlaba was derived from Saka, the name of an Iranian population living north of the Caspian sea in pre-Christian times. Saka, from sah, sak, meaning \'lord,\' referred to the social organization, a type later called feudal (for bibliography see Lozinski, B. P., The Original Homeland of the Purthians (Hague, 1959), pp. 29 f. Saqlaba, possibly a compound name, might have been a survival of the earlier name Saka, referring to the same geographical region and to a similar social organization of the inhabitants, differences of population notwithstanding. The change from Saka to Greek Sklavini might have occurred by elimination of the vowel and addition of suffixes. In the same way Persian (and Arabic) sakirlat, ‘textle,’ primarily wool, became scarlatum, ‘scarlet’ in the Latin of the Middle Ages: Hontum-Schindler, A., \"The word scarlet,\" Journal of the Asiatic Society of Bengal, N.S., VI (http://members.tripod.com/~Groznijat/fadlan/lozinski.html191... 265-265.