yesterday
UK: ˈjestədeɪ | US: ˈjestərdeɪ
Definition
n. 1. The day before today.
n. 2. The recent past.
adv. 1. On the day before today.
Structure
yester <previous>day <24-hour period>
Etymology
The word "yesterday" originates from Old English geostran dæg, combining geostran (meaning "of yesterday" or "previous") and dæg (meaning "day"). The morpheme "yester-" survives in archaic or poetic terms like "yesteryear" and reflects a Germanic root (gester-) for temporal proximity. Over time, the spelling simplified to "yesterday," retaining its core meaning of "the day before today."
Examples
I met her yesterday at the café.
Yesterday’s news feels irrelevant today.
He promised to finish the work yesterday.
Yesterday was a public holiday.
The technology of yesterday seems outdated now.