Word Study
yester
CIDE DICTIONARY
yester, a. [See Yesterday.].
Last; last past; next before; of or pertaining to yesterday. [1913 Webster]
" This word is now seldom used except in a few compounds; as, yesterday, yesternight, etc." [1913 Webster]
"[An enemy] whom yester sun beheld
Mustering her charms." [1913 Webster]
Mustering her charms." [1913 Webster]
For further exploring for "yester" in Webster Dictionary Online