P van Rijckevorsel wrote:

Wrong dictionary.
As words go this one has got a fairly respectable age:
it is pre-Norman invasion.
Look again.
PvR

==============
Quegmo Backwater schreef
From Dictionary.com:
Word History: A thoughtful glance at the word acorn might produce the
surmise that it is made up of oak and corn, especially if we think of
corn in its sense of "a kernel or seed of a plant," as in peppercorn.
The fact that others thought the word was so constituted partly accounts
for the present form acorn. Here we see the workings of the process of
linguistic change known as folk etymology, an alteration in form of a
word or phrase so that it resembles a more familiar term mistakenly
regarded as analogous. Acorn actually goes back to Old English æcern,
"acorn," which in turn goes back to the Indo-European root *g-, meaning
"fruit, berry."

+ + +

Great.
Well, on the upside we have agreement that it is a pre-1066 word, that
linguistic tradition has it that acorn is derived from "ac" and "corn" and
that the word "acorn" is based on the edibility.

On the downside (point of contention) this linguistic tradition is supposed
to be wrong?

What is certain is that the computer monitor is not friendly to
Indo-European signs.

So I suppose I am to go in search of a few good Indo-European dictionaries.
Just great ...
PvR