Where does “Aldrovandi” come from?

Aldrovandi (Italian) comes from Italian -i, from Latin -i, from Latin -ēs, from Proto-Indo-European h₁éy- — he, this.

Ancestry of “Aldrovandi”, step by step

StepLanguageWordMeaning
1Italian-iUsed with a stem to form the second-person...
2Latin-inominative/vocative masculine plural of -us;...
3Latin-ēsfirst conjugation
4Proto-Indo-Europeanh₁éy-he, this
Every word from Proto-Indo-European h₁éy-Every word from Latin -ēsEvery word from Italian -i