EXAMPLES | WORD ORIGIN adjective moving, directed, or situated toward the west: the westerly end of the field. (especially of a wind) coming from the west: a westerly gale. adverb toward the west: to escape westerly. from the west: a sharp wind blowing westerly. noun, plural west·er·lies. a wind that blows from the west: an occasional westerly that pommeled the island. westerlies, ( used with a plural verb) any semipermanent belt of westerly winds, especially those that prevail at latitudes lying between the tropical and polar regions of the earth. Origin of westerly 1570–80; west
easterly Related forms west·er·li·ness, noun
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for westerlies Historical Examples of westerlies British Dictionary definitions for westerlies pl n meteorol the prevailing winds blowing from the west on the poleward sides of the horse latitudes, often bringing depressions and anticyclones adjective of, relating to, or situated in the west adverb, adjective towards or in the direction of the west (esp of the wind) from the west noun plural -lies a wind blowing from the west Derived Forms westerliness, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for westerlies n.
prevailing winds in certain latitudes, 1876, from
westerly (see west). adv.
late 15c., "in a westerly direction; facing toward the west," from Middle English
wester (adj.) "western" (mid-14c.), from Old English westra, variant of westerne (see western) + -ly (2). Cf. Old Norse (adv.). Middle English also had a verb wester "to go west." Related: Westerlies (n.). Somewhat contradictory sense of "coming from the west" attested by 1570s.
Online Etymology Dictionary, © 2010 Douglas Harper
A wind, especially a prevailing wind, that blows from the west. The prevailing winds in the middle latitudes are westerlies. See illustration at wind.
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