yester-

yester-

pref. Yesterday: yesternight.
[Middle English, from Old English geostran; see dhgh(y)es- in Indo-European roots.]

yester-

prefix 1. indicating the day before today: yesterday. 2. indicating a period of time before the present one: yesteryear. [Old English geostran; compare German gestern, Latin hesternus of yesterday]

yes•ter

(ˈyɛs tər)

adj. Archaic. of or pertaining to yesterday (usu. used in combination): yesternight. [1570–80; extracted from yesterday]

yester-

a combining form occurring in words that denote a time one period prior to the present period, the nature of the period being specified by the second element of the compound: yesteryear. (Old English geostran, c. Old High German gestre; akin to Latin hesternus of yesterday]