Where does “cleaner” come from?

Cleaner derives from English clean plus the agent suffix -er, ultimately from Proto-Indo-European gū-, which developed through Latin -arius and -are into Old French -er.

cleaner (English): A person whose occupation is to clean floors,...

Definitions

  1. A person whose occupation is to clean floors,...

Ancestry of “cleaner”, step by step

cleaner traces back through two separate lines of ancestry.

via English clean

StepLanguageWordMeaning
1Englishclean"Free of dirt or impurities or protruberances.";...
2Middle Englishcleneclean
3Old Englishclǣnepure, clear; clean, pure
4Proto-Germanicklainizshining, fine, splendid; tender, precious
5Proto-Indo-Europeang(e)lēi-gleaming
6Proto-Indo-Europeanǵel-to swallow; swallow

via Middle English clener

StepLanguageWordMeaning
1Middle Englishclener

Words derived from “cleaner

Every word from Proto-Indo-European ǵel-Every word from Proto-Indo-European g(e)lēi-Every word from Proto-Germanic klainiz