Where does “impenetrabilmente” come from?
impenetrabilmente (Italian) comes from Italian impenetrabile, from Latin impenetrabilis, from Latin penetrabilis, from Latin -bilis, from Proto-Italic -ðlis, from Proto-Indo-European -dʰlis, from Proto-Indo-European -dʰlom — Alternative form of *-trom; instrumental suffix;...
impenetrabilmente (Italian): impenetrably
Ancestry of “impenetrabilmente”, step by step