Weeel, see if this clouds or helps clear it. My last name (where Giac comes from) is a gift from Italian ancestors, and I was told it means Jacob.

Just looked up Giacomo in my outrageously heavy Collins Sansoni dictionary:

giacomo (pop) - fare ~ (tremare) to tremble, to shake; Giacomo N.pr.m. 1 James. 2 (Bibl) Jacob.

Alrighty, then.

BTW, I don't speak Italian, I just thought the huge dictionary was cool, and have actually used it a lot.

Giacfinanebutnotdead