--- In cybalist@..., "tgpedersen" <tgpedersen@...> wrote:

> Is it possible to bring Latin pileus [pilleus -- PG] and Greek

pi:los under one (felt) hat, or should we assume a loan from
elsewhere (probably IE, *p-l- "smash, break, make into a pulp", of
felt)?

Both are from *pil-s-, compare Slavic *pIlstI 'felt', Polish ples'n'
< *pIlsnI 'mould, fungus'. Without the *-s- extension we have Latin
pilus 'hair'.

Piotr