John Croft wrote:

>>Holly was a symbol of Saturn, whose name was derived from satus = sowing

I have seen this argument before, but, nevertheless, there doesn't seem to
be universal agreement on this derivation. It is sometimes argued that
Saturnus developed from Saeturnus, which in turn developed from Jamshyd,
itself developed from Yima xsaeta [Gamkrelidze & Ivanov 1995: 723, n. 52
(Jamset or Jamsid; citing Dumézil 1971: 246 ff.).] Alternatively, it might
have been Yimo Xsaeto [Gamkrelidze, T.V. & Ivanov, V.V. (1995),
"Indo-Europe and the Indo-Europeans", Mouton de Gruyter, New York: 723.].
Yima was a flood hero (as in Iranian and Central Asian myth), and it is
argued that his name was also derived from a PIE word, *yemo, meaning
"twin".

Proto-Indo-European *Ym[mi]yós, and Proto-Indo-European *yemo, "twin"
[Pokorny, J (1959), Indogermanisches Etymologisches Wörterbuch, Francke,
Bern: 505; as cited in Lincoln, B., "The Indo-European Myth of Creation" in
History of Religions 15 (1975), 121-145: 129]. See also Puhvel, J., Remus
et Frater in History of Religions 15, (1975); 146-157.

Regards,

Jean Kelly