Where does “abilissimo” come from?

abilissimo (Italian) comes from Italian abile, from Latin habilis, from Latin -ilis, from Proto-Italic -elis, from Proto-Indo-European -elis, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

Ancestry of “abilissimo”, step by step

StepLanguageWordMeaning
1Italianabileskilful; clever; able, fit
2Latinhabilisable to have/possess/maintain; having sufficient...
3Latin-ilis-ile
4Proto-Italic-elis—
5Proto-Indo-European-elis—
6Proto-Indo-European-lósForms agent nouns from verbal roots
Every word from Proto-Indo-European -lós →Every word from Latin -ilis →Every word from Latin habilis →