since the year dot
- idiom
- UK
- I've known him since the year dot.
Examples
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We've used the same accounting system since the year dot.
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They've been friends since the year dot!
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Jane and Mark have known each other since the year dot.
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Their family has lived in the village since the year dot.
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Their family has lived in the village since the year dot.
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We've used the same accounting system since the year dot.
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Jane and Mark have known each other since the year dot.
Synonyms
Saying that something happened many years ago and is not true now
Since a long time ago
From a very long time ago up to now
A very long time ago that people can remember
For a very long time
For a very long time with no clear end
How Long
Surface Forms
Morphology
The meaning 'for a very long time' is not derivable from the literal parts: 'dot' (a small spot) plus 'year' do not transparently convey duration, so knowing the individual words would not lead a B1 learner to the idiomatic sense. This is a colloquial, language-specific idiom whose meaning is unpredictable from its constituents, making it opaque.
Etymology
The idiom since the year dot may come from a simple image: people imagined the very first year written as just a tiny dot, meaning the very start, or 'from the very beginning'. That's why we say it to mean someone has done something 'for a very long time'.