easternly
/ˈiːst(ə)nli/Now rare
adverb
1Towards the east; in an easterly direction; on the east side.
2In an eastern or oriental manner; in an east country dialect or accent.
Origin
Late 16th century; earliest use found in William Phillip (fl. 1596–1619), translator. From eastern + -ly, probably partly as alteration of easterly.