Where does “infrangibly” come from?
infrangibly (English) comes from English infrangible, from Old French infrangible, from Latin frangibilis, from Latin -bilis, from Proto-Italic -ðlis, from Proto-Indo-European -dʰlis, from Proto-Indo-European -dʰlom — Alternative form of *-trom; instrumental suffix;...
infrangibly (English): In an infrangible manner
Ancestry of “infrangibly”, step by step