The Collaborative International Dictionary of English v.0.48:
Eastward \East"ward\, Eastwards \East"wards\, adv. Toward the east; in the direction of east from some point or place; as, New Haven lies eastward from New York. [1913 Webster]WordNet (r) 3.0 (2006):
eastwards adv 1: toward the east; "they migrated eastward to Sweden" [syn: eastward, eastwards]