WordReference Random House Unabridged Dictionary of American English © 2017
(yes′tər),USA pronunciation adj. [Archaic.]
- of or pertaining to yesterday. Also, yestern.
a combining form, now unproductive, occurring in words that denote an extent of time one period prior to the present period, the nature of the period being specified by the second element of the compound:yesterweek.
- back formation from yesterday, etc. 1570–80
- Middle English; Old English geostran, giestron; cognate with Dutch gisteren, German gestern; akin to Latin hesternus of yesterday
Collins Concise English Dictionary © HarperCollins Publishers::
yester /ˈjɛstə/ adj
Etymology: Old English geostror; related to Old High German gestaron, Gothic gistra, Old Norse ī gǣr
- archaic of or relating to yesterday: yester sun
Etymology: Old English geostran; compare German gestern, Latin hesternus of yesterday
- indicating a period of time before the present one: yesteryear
'yester' also found in these entries: