Vijay wrote: ↑Sun Apr 11, 2021 4:56 pmOh okay, thanks! I saw Kuchigakatai say something about /h/ being lost, thought "don't you mean /f/?" looked up Old Spanish, and got confused by those two examples.
Oh, I meant, late Old and early modern Spanish /h/. There was a while in which words spelled like <fiio> 'son' and pronounced /ˈɸiʒo/ [ˈhiʒo] (maybe even [ˈɸiʒo]) in the 13th century came to be spelled <hiio> and pronounced /ˈhiʃo/ [ˈhiʃo] by the 15th century, with a /h/ [h] that contrasted with the /f/ [f] that came from earlier inherited /ɸw ɸr/ (fuerte, frío, maybe pronounced [fw] or [ɸw]?) and sometimes /ɸj/ (fiera, but see Latin fel > hiel), possibly usually semi-learned /ɸl/ (flor, flaco), and latinisms, gallicisms or occitanisms with <f> (fácil, flecha, fraile; likely also the /f/ [f] of fe/fiel, but see the related fidāre > fiar).
Basically, although 13th-century Castilian may have possibly mostly had /ɸ/ [ɸ ~ h], with a marginal learned /f/ [f] in latinisms, gallicisms or occitanisms, this /ɸ/ became /h/ [h] soon enough when followed by a vowel while at the same time there was huge influx of words from Latin or French that produced a well-cemented new /f/ phoneme, partly fed by the old /ɸ/ when followed by a consonant.