"bean" + "fava"

2 words from the same forefather:

bean

• Proto-West-Germanic *baunu ("bean")
  • Proto-Germanic *baunō ("bean")
    • PIE *bhabh- ("bean")

(the last "b" shifted into an "n" when PIE branched off into the Germanics!)

fava

• Italian fava ("bean")
  • Latin faba
    • PIE *bhabh- ("bean")

when PIE branched off into the "Romance languages":

• the first "b" sound became an "f" sound

the last "b" sound became a "v" sound