difficult

...tortuous explanation in Onions about this word, including, faculty, but actually is another nauatl word than, aci(N)/hacer(sp)/facio(Latin)=do/done(E)=d/to/Tonatiuh(N)=Sun deity, and, that word=piciliui(N)=to make thin/smaller, speaking of an object,=pencil/penicillin(E)=difficult(E)=the u/i shift so common between Gk, its Latin derivative, and English,=difícil(sp)=d/tepicilui(N)=the thinning/slimming of someone(is very difficult), note the,-ciliui(N/particle), the i/u/i, the bracketed (u) comes into play and the i/i are elided, as is the fate of this letter in trans-idiom. te/de/di f/pícil/i/u/i(Letra).