to Yetos, concerning meanings close to 'wheel' concept:
I did not open a thread in linguistic, spite I know it's hair splitting
too much analysis for wheel
but forgetting that except kυκλοςgreek ελιξ / helix
supposed western IE *wel- : « to roll », « to wind up » (?) - greek eluô / ellô← weluô – helix-helicos « spiral » - latin : volvere, volutum, volutare and their derived words in romance langages and in loanwords in non-romance ones (french : voûte, volute, volubile, vautrer, évoluer, + eventually val, vallée, avaler ... - germanic : wallow, well, to welter, welle : « flood », « cylinder », wellig « wavy », wallen « to wave », « to boil »...
helix : problem of the H- ; but irish seilid (it supposes an archaic greek noun in *Sel- see Helix : could be broken off into **se + *elik-os ? Only hazard ? No clue with me but S- without subsequent vowel was a very common additive consonnant in head of words in IE -
κοχλιας / kohlias « screw vida »(?vida?)
AND
kοχλιας : « snail » - latin cochlea(surely from greek) -
it has given latin coclea « snail », « spiral staircase » - cocleatium « spoon » -> french cuiller (cuillère), spanish cuchara – breton kogle/kloge/kogloa « ladle » …
I wonder if this greek word could not be broken off into *koX + *elias. A seemingly IE root exists in greek kogkhê « shell » ; + internal -n- : latin concha / conchylium « shell(fish) » , see old-french : coche : -id- - modern french : conque, coque, coquille… meaning of « shell » ...
could an old **kogkh’ had given **koX in a composed word ? In this case there is no *kol- either kwol- in this word… but it could be supposed a compound of **kogkh-elia-(s) ??? the *eli as in (h)eli-kos ? Only a guess, because the ancient PIE *(w)el would have been accentuated, theorically.
if someone has the right answer? Taranos or one other?
in fact κοχλιας and πολος is more complicated
have you notice the S Slavic with the rest Slavic form,
it takes the aspiration of Greek polos,
and I do not know how old it, maybe is not from PIE, but I think it is found in Latin pro+pellere
So Keklos or to Keln gives also polos, but also kepts the original K G X Γ sound
For your info Κοχλιας in Cretan idiom is Χοχλιος Hohlios,
I do not know if Cretan adopted it such, or a proto form for example Helix was Hehlix.
your notice is very good, +1 from me,
But what about Latin pellere in propeller. that P compare Greek polos and S Slavic Vij and Polz and Bulgarian villov okhliuv
you suggest to be a kind of kogkh+peller?
I am not that expet,
and I know you are better than me in such,
but that problem, you know it is enough to reconsider about first homeland of IE,
no matter Anatolian to some, considered away from Greek
So what you write as *konkhe is what we fibd in Greek as κογχη.
it also means a curved surface, compare
κελυφος (
shell) κοχυλι the ancient Gr κογχυλιον,
so κογχυλιον kept γ and κοχλιας reject it ?
κογχυλιον
so your suggestion is to be from konkh + eli
possibly with eli you mean ελισσομαι ελιγμος? Ι maneuver,
But that eli-x has a laryngeal g or a double ss
But what about κελυφος = shell,
I don't see any *konkh- here?