The phrase “at last” is an idiomatic expression used to indicate that something has finally happened after a period of waiting or delay.

Meaning: “At last” signifies the culmination of a process or the end of a period of anticipation, often implying a sense of relief or satisfaction.

Usage in Example Sentences:

• “After months of preparation, the event took place at last.”
• “She received the long-awaited letter at last.”
• “At last, the rain stopped, and the sun came out.”

Origin: The expression “at last” has been part of the English language since around 1200 (Dictionary.com). It combines “at,” meaning “in” or “on,” with “last,” meaning “final” or “end,” to convey the idea of something occurring in the final moment or after a series of events.