easterly
     adj 1: lying in or toward the east; "the east side of NY"; "eastern
            cities" [syn: {eastern}]
     2: from the east; used especially of winds; "an east wind";
        "the winds are easterly" [syn: {eastern}]
     n : a wind from the east [syn: {east wind}, {easter}]
     adv : from the east; "the winds blew easterly all night" [ant: {westerly}]
Source: WordNet® 2.0