01 a. Last; last past; next before; of or pertaining to yesterday.
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1.
Last; last past; next before; of or pertaining to yesterday.“[An enemy] whom yester sun beheld Mustering her charms.” — Dryden.
Entry
1 sense
Webster, 1913
Yester
· Yes·ter
· IPA /ˈjɛs.tɚ/