Nicely put Gez - I guess you have now had your morning coffee
A writer's business is redefining and discovering etc
Tolkein did not superfluously redefine the commonplace.
With all due respect - if it is that important - he did ... or if you prefer, one man's commonplace is another man's extraordinary.
Allow me to repeat a RL documentary's findings:
The people of the Orkney Isles on the northern tip of Scotland were 'bedevilled' by strange noises in the middle of the night at certain times of the year ... but when they went to investigate they found nothing - but that the noises seemed to come from deep in the bowels of the land ... so they decided that these had to be made by evil or malevolent spirits / beings etc ... they called them Orcs. Not to be confused with Orcas = whales ... k?
Well a team of scientists visited the islands and discovered that the noises were made by tiny, nocturnal sea-dwelling birds that only came to land to roost in the inaccessible-to-the-islanders caverns beneath the islands.
JRR's fearsome Orcs were actually tiny seabirds ...
I'm sure that the islanders knew the truth and just propagated a tale to impress the Vikings and others that the people of the Orcneys were powerful in magic and not to be messed about with ... The commonplace.
What JRR and the Islanders did do was to make the commonplace seem wonderful/terrible etc ...
... and to folks here the spellings of things can be fascinating - and why not?