Where does “mobilissimo” come from?

mobilissimo (Italian) comes from Italian mobile, from Latin mōbilis, from Latin -bilis, from Proto-Italic -ðlis, from Proto-Indo-European -dʰlis, from Proto-Indo-European -dʰlom — Alternative form of *-trom; instrumental suffix;...

Ancestry of “mobilissimo”, step by step

StepLanguageWordMeaning
1Italianmobilemovable, mobile; moving; piece of furniture
2Latinmōbilismovable, loose
3Latin-bilis-ble
4Proto-Italic-ðlisForms adjectives from verb stems indicating capacity or worth of being acted on
5Proto-Indo-European-dʰlis
6Proto-Indo-European-dʰlomAlternative form of *-trom; instrumental suffix;...
Every word from Proto-Indo-European -dʰlomEvery word from Latin -bilisEvery word from Latin mōbilis