Where does “solidissimo” come from?

solidissimo (Italian) comes from Italian solido, from Latin solidus, from Proto-Italic soliðos, from Proto-Indo-European solh₂-i-dʰ-o-s, from Proto-Indo-European solh₂- — whole.

Ancestry of “solidissimo”, step by step

StepLanguageWordMeaning
1Italiansolidosolid; solid, strong, firm, sound; reliable,...
2Latinsolidussolid; A solidus: a Roman ~23-carat gold coin...
3Proto-Italicsoliðos
4Proto-Indo-Europeansolh₂-i-dʰ-o-sentire
5Proto-Indo-Europeansolh₂-whole
Every word from Proto-Indo-European solh₂-Every word from Proto-Indo-European solh₂-i-dʰ-o-sEvery word from Proto-Italic soliðos