English
launderometer
From a trademark, Launder-Ometer, from launder + -o- + -meter.
Formed from launder + -o- + -meter
Proto-Indo-European *lewh₃- ‘to wash’
…
Latin lavō ‘to wash’
Late Latin lavandera
Old French lavandiere ‘washerwoman’
Middle English lavender ‘a washer’
English launder
Today it means
noun A device with rotating cylinders for measuring the cleanability or colorfastness of cloth in a given liquid.
Language periods are conventional ranges, not dates for this word.
Etymograph / launderometer