The inconsistencies... likely arise from the different languages, translators, or perhaps even the preferences of the writer(s).
I was actually thinking the Voice actors in the studio, last minute stuff. I wouldn't expect many people to be aware of the
potential connections in my last post. The etymology of "shenanigans" is considered uncertain, but theres nothing non-Irish about it, and when you combine the
Sídhe's proclivity for mischief with the Irish Traveller tradition (indigenous itinerant lifestyle whose numbers swelled during the famine, but existed from ancient times as "camp followers" for Irelands numerous, regular, and week-long festival gatherings), it becomes highly probable the words origins are here. And thats not even taking into account the gaping hole the size and shape of Ireland that resides within many threads of historical inquiry, you may not have heard about that!
As for the personal name Síle arising from Ceclia, perhaps... doesn't change the fact that the word, sound & meaning of
sídhe is attested in manuscript prior to the Norman invasion, is a component of many placenames (themselves amongst the very oldest of our traditions), and the whole sheela-na-gig phenomenon, which isn't remotely enlightened by being named after some blind Norman chick.
I remember a time when the origin of the word "Bard" was said to be Norman. Not anymore. I suggest that while a lot of words entered wide usage through the - internationalists at the time - Normans, I wonder if such a heavily militarily focused people had much energy left over for so many new words & concepts... or could it just be that they are a comfortable place to stop the investigation for some people?
I was a bit loose earlier, strictly
Avallach would be "one from Avall", and
Avalonach would be required for "one from Avalon".
Ablach is Irish for apple btw, and the 'b' is pronounced as a 'v'.
The Isle of Man is traditionally thought to be closely connected to the Sacred Isle. Certainly sometimes the Hero travels east to go there. I've occasionally looked at Anglesey as a potential inspiration too, as we know it was a major Druidical centre. Why the furthest point in Wales from the Angles territory is the
only significant rebranding in the whole country is curious also. I wonder if they grow good apples there.