Where does “particolarissimo” come from?

particolarissimo (Italian) comes from Italian particolare, from Latin particulāris, from Latin particula, from Latin pars, from Proto-Indo-European per-, from Proto-Indo-European pr̥tós — passed , crossed.

Ancestry of “particolarissimo”, step by step

StepLanguageWordMeaning
1Italianparticolareparticular, private, personal; singular, unusual,...
2Latinparticulārisparticular
3Latinparticulasmall part, particle
4Latinparspart, side, piece, share; some; faction
5Proto-Indo-Europeanper-before, in front; first; to go through
6Proto-Indo-Europeanpr̥tóspassed , crossed
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Latin pars