Easterly

Noun

 * 1)  Any persistent wind from the east (usually applied to broad currents or belts of easterly winds).

Adjective

 * 1) Facing the east; directed towards the east.
 * 2) Located towards the east.
 * 3) Coming from the east.

Derived terms

 * easterliness

Adverb

 * 1) In an eastward direction or position; towards the east.
 * 2) From the east.

Thesaurus
E, Euroclydon, Tehuantepec wind, Tehuantepecer, antarctic, arctic, austral, bise, boreal, east, east wind, eastabout, eastbound, easter, eastermost, eastern, easternmost, eastward, eastwardly, eastwards, gregale, hyperborean, levanter, meridional, mistral, north, north wind, northbound, northeast, northeaster, northeasterly, northeastern, norther, northerly, northern, northernmost, northwest, northwester, northwesterly, northwestern, occidental, oriental, south, south wind, southbound, southeast, southeaster, southeasterly, southeastern, souther, southerly, southerly buster, southern, southernmost, southwest, southwester, southwesterly, southwestern, tramontane, west, west wind, westbound, wester, westerly, western, westernmost

Etymology
Probably from easter + -ly.