Janey, like I said, it was just an idea, but it does marry up with a Herry ADYCOT marriage mention in Cornwall in 1583.
There's also another name meaning given as 'man of the coast'.
We also have the earlier Addacott, going back to 1552 with the wifes surname being 'Sampsoun'.
Now, that could be Sampson, or it could be a french derivative.
It was just interesting that Tunya's grandmother has also heard of the French connection. Obviously a story which has travelled through the lines.
Devon is virtually next to Cornwall, so it's not inconceivable the family may have travelled from there.
Finding them is going to be the hard part.