Old Englishgeostran, of Germanic origin; related to Dutch gisteren and German gestern 'yesterday', from an Indo-European root shared by Latin heri and Greek khthes.
Definition of yester- in US English:
yester-
combining form
literary, archaic
Of yesterday.
〈诗/文,古〉表示“昨天的”
yestereve
yesteryear
Origin
Old English geostran, of Germanic origin; related to Dutch gisteren and German gestern ‘yesterday’, from an Indo-European root shared by Latin heri and Greek khthes.