Where does “serratissimo” come from?

serratissimo (Italian) comes from Italian serrato, from Latin serratus, from Latin serrō, from Latin serra, from Proto-Italic serzā, from Proto-Indo-European sers-eh₂, from Proto-Indo-European sers-, from Proto-Indo-European ser- — to flow; to guard; to bind, to tie together.

Ancestry of “serratissimo”, step by step

StepLanguageWordMeaning
1Italianserratopast participle of serrare; past participle of...
2Latinserratussawn; serrated
3Latinserrōto saw up, or to pieces
4Latinserraa saw; a kind of sawfish; a serrated battle order
5Proto-Italicserzā
6Proto-Indo-Europeansers-eh₂
7Proto-Indo-Europeansers-to cut off
8Proto-Indo-Europeanser-to flow; to guard; to bind, to tie together
Every word from Proto-Indo-European ser-