Where does “pesantissimo” come from?

pesantissimo (Italian) comes from Italian pesante, from Italian pesare, from Latin pensō, from Latin pendō, from Proto-Italic pendō, from Proto-Indo-European (s)péndeti, from Proto-Indo-European (s)pend- — to stretch.

Ancestry of “pesantissimo”, step by step

StepLanguageWordMeaning
1Italianpesantepresent participle of pesare; heavy; oppressive,...
2Italianpesareto weigh
3Latinpensōto ponder, consider
4Latinpendōto weigh, weigh out
5Proto-Italicpendōhang, put in a hanging position
6Proto-Indo-European(s)péndeti—
7Proto-Indo-European(s)pend-to stretch
Every word from Proto-Indo-European (s)pend- →Every word from Proto-Indo-European (s)péndeti →Every word from Proto-Italic pendō →