Where does “calorosissimo” come from?

calorosissimo (Italian) comes from Italian caloroso, from Italian Calore, from Latin Calor, from Latin -or, from Proto-Italic -ōs, from Proto-Indo-European -ōs, from Proto-Indo-European -oss, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Ancestry of “calorosissimo”, step by step

StepLanguageWordMeaning
1Italiancalorosowarming; warm, hearty; peppery, spicy
2ItalianCalorewarmth
3LatinCalorOne of the most important tributaries of the Vulturnus, now called Calore
4Latin-orused to form a third-declension masculine...
5Proto-Italic-ōsCreates masculine action nouns or result nouns...
6Proto-Indo-European-ōsCreates masculine and feminine action nouns or...
7Proto-Indo-European-oss
8Proto-Indo-European-osCreates action nouns or result nouns from verbs;...
Every word from Proto-Indo-European -osEvery word from Latin -orEvery word from Latin Calor