I. ˈwestə(r)lē, -li; - R -təl- sometimes -t ə l- adjective
Etymology: obsolete English wester western (from Middle English, from Old English westra more towards the west, from west, adverb + -ra -er) + English -ly
1. : situated or directed toward the west : western
a westerly suburb
wended their way in a westerly direction up the valley — J.E.Winston
2. : blowing from the west
a westerly breeze
II. adverb
1. : from the west
the wind blew westerly
2. : toward the west
we began to steer away westerly — Daniel Defoe
III. noun
( -es )
: a wind blowing from the west
the prevailing westerlies of the temperate zones