Where does “zarcladur” come from?

zarcladur (Romansch) comes from Romansch zarclar, from Vulgar Latin sarclare, from Late Latin sarculare, from Latin sarculum, from Latin -culum, from Proto-Italic -klom, from Proto-Indo-European -tlom, from Proto-Indo-European -trom — Derives agent nouns from verbs, denoting someone...

Ancestry of “zarcladur”, step by step

StepLanguageWordMeaning
1Romanschzarclarto weed
2Vulgar Latinsarclarepresent active infinitive of *sarclō
3Late Latinsarculare
4Latinsarculumhoe
5Latin-culumnominative neuter singular of -culus; accusative...
6Proto-Italic-klom
7Proto-Indo-European-tlomAlternative form of *-trom
8Proto-Indo-European-tromForms nouns denoting a tool or instrument
9Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...
Every word from Proto-Indo-European -tḗrEvery word from Latin -culumEvery word from Proto-Italic -klom