Shouldnae

Part of speech: verb

Definitions

1. A Scottish dialect contraction meaning ought not, used to express that someone should refrain from doing something
2. The Scots negative form of should, indicating that an action is advisable to avoid or is not the right thing to do
3. In Scottish speech, a colloquial way of saying should not when giving advice or stating an obligation to refrain

Etymology: Scots "shouldnae" is a contraction of "should" and "nae", the Scots form of "not". Scots "nae" descends from Old English "nā", which likewise meant "no" or "not", so the word is essentially "should not" written the way it is pronounced in Scotland. The Scots negative attaches to the modal verb in the same way English "shouldn't" does, with the "n't" replaced by the older-looking "nae".