Where does “laundry egg” come from?

laundry egg (English) comes from English laundry, from Middle English lavendrie, from Old French lavanderie, from Latin lavandaria, from Latin lavandarium, from Latin lavare, from Latin lavo, from Proto-Italic lawaō — to wash.

laundry egg (English): An egg-shaped object used to clean clothes, using mineral pellets, as a substitute for laundry detergent

Definitions

  1. An egg-shaped object used to clean clothes, using mineral pellets, as a substitute for laundry detergent

Ancestry of “laundry egg”, step by step

laundry egg traces back through two separate lines of ancestry.

via English laundry

StepLanguageWordMeaning
1EnglishlaundryA laundering; a washing; A place or room where...
2Middle EnglishlavendrieA part of a manor or a facility for washing clothes; a laundry
3Old Frenchlavanderielaundry
4Latinlavandaria
5Latinlavandarium
6Latinlavarepresent active infinitive of lavō; second-person...
7LatinlavoI wash, bathe; I wet, moisten
8Proto-Italiclawaō
9Proto-Indo-Europeanléwh₃eti
10Proto-Indo-Europeanlewh₃-to wash

via English egg

StepLanguageWordMeaning
1EnglisheggAn approximately spherical or ellipsoidal body...
2Middle EnglisheggenTo egg on; to encourage or provide motivation; To...
3Old Saxoneggianto harrow
4Old Norseeggjato incite, egg on to do
5Old Norseeggegg; edge
6Proto-Germanicagjōedge, corner
7Proto-Indo-Europeanh₂eḱ-sharp
Every word from Proto-Indo-European lewh₃-