Morpheme
Yest(e)r [Yester, Yestr]
Type
free base
Denotation
the other, former, earlier, previous
Etymology
Middle English yester, yister; Old English ġeostran, from ġiestran, ġeostra, ġystran, ġyrstan
Evidence
yester, yesterdawn, yesterday, yestreen, yestereve, yestermorn, yestermorrow, yesternight, yesters, yesteryear