which I think is broadly speaking where we are here.
Eye could be a metaphor for observer, guard, protector; also for a treasure, something protected; in both ways ''ma''-"mother" seems an apt subsumption.
In Chinese, ''star (constellation)'' is written with a sign meaning "night guard duty".
And then there's ''Hor, Horus'', god of sky, sun (and war ...) depicted in hieroglyphs by a falcon; The same word  stands for "upon". So the theonym is likely derived from "the One Above". ''hr'' in turn is likely derived from Proto-Afro-Asiatic ''x̣al''.
Sky in French is "ciel", the proto-indo-european root given as ''kel'', whence also ''ceiling'' (and perhaps ''cellar'', whence ''cell'', not the other way around). I think that's close enough to ''*xal'', considering that the Iberian had contact between keltic and north African tribes (kel-tic?).
The greek autonym ''Helenikos'' is likely informed by "elector" (sun), cf. en. ''halo'', ger. ''hell'' ("bright").
Further, internal reconstruction comparing other roots is difficult so the relation to old egyptian that I drew out is not established.
A funny thing to look at would be the root of ''calm'', which is uncertain but perhaps related to "burning in the midday sun". Ironically, "burn" is related to "black".
Edit: I only posted this in case someone was confused by a black rectangle like I was.