Where does “Rasenmäher” come from?

Rasenmäher (German) comes from German Mäher, from German -er, from Old High German -āri, from Proto-West Germanic -ārī, from Proto-Germanic -ārijaz, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

Rasenmäher (German): lawnmower

Definitions

  1. lawnmower

Ancestry of “Rasenmäher”, step by step

Rasenmäher traces back through two separate lines of ancestry.

via German Mäher

StepLanguageWordMeaning
1GermanMähermower; reaper
2German-erForms agent nouns etc. from verbs, suffixed to...
3Old High German-āriused to form agent nouns
4Proto-West Germanic-ārī-er
5Proto-Germanic-ārijaz-er
6Latin-āriuser
7Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)

via German rāsen

StepLanguageWordMeaning
1Germanrāsen
2Middle High Germanrāsen
Every word from Proto-Italic *-āziosEvery word from Latin -āriusEvery word from German -er