Doodle
The trouble with a word being used incorrectly and repeatedly is that these days, it is added to an online dictionary, giving people the idea it is correct.
I go to my 1930's comprehensive dictionary (albeit that I have to ask my son to read the tiny text) to check when I'm in doubt and the online sources are (I believe) incorrect.
To the Yorkshire members and those familiar with the county, there are many tarns - shallow lakes. I swam in them as a child but in a recent argument 'debate a 'tarn' was judged to be a puddle.
In vain did I explain the icy exploits of my youth because there, in an online dictionary it defined tarn as "a puddle".
So let's not believe the person with actual 1st hand knowledge of a tarn, eh?
Army horses loose on London streets