Where does “thumbload” come from?

thumbload (English) comes from English load, from Middle English lode, from Old English lād, from Proto-West Germanic *laidu, from Proto-Germanic laidō, from Proto-Indo-European leyt-, from Proto-Indo-European lēy- — to leave, let; to want, desire; to let; leave...

thumbload (English): An amount equal to a thumb; a thumb's worth (of volume, pressure, etc)

Definitions

  1. An amount equal to a thumb; a thumb's worth (of volume, pressure, etc)

Ancestry of “thumbload”, step by step

thumbload traces back through two separate lines of ancestry.

via English load

StepLanguageWordMeaning
1EnglishloadA burden; a weight to be carried; A worry or...
2Middle Englishlodeguide
3Old Englishlādcourse, journey; way, street, waterway; leading,...
4Proto-West Germanic*laidu
5Proto-Germaniclaidōa leading; a way, course, route, direction
6Proto-Indo-Europeanleyt-to scratch; to leave, die; to go, go forth, die
7Proto-Indo-Europeanlēy-to leave, let; to want, desire; to let; leave...

via English thumb

StepLanguageWordMeaning
1EnglishthumbThe short thick digit of the hand that for humans...
2Middle Englishþombethumb; thumb-length; big toe
3Old Englishþūmathumb
4Proto-West Germanicþūmōthumb
5Proto-Germanicþūmôthumb
6Proto-Indo-Europeantūm-to grow; to swell, to increase; to swell, be...
7Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong
Every word from Proto-Indo-European lēy-Every word from Proto-Indo-European leyt-Every word from Proto-Germanic laidō