Where does “thumbsucker” come from?

thumbsucker (English) comes from English sucker, from English suck, from Middle English souken, from Old English sūcan, from Proto-West Germanic sūkan, from Proto-Germanic sūkaną, from Proto-Indo-European sug-, from Proto-Indo-European sew- — to press out, extract; juice; liquid, rain; to...

thumbsucker (English): Someone who sucks their thumb; A piece of serious...

Definitions

  1. Someone who sucks their thumb; A piece of serious...

Ancestry of “thumbsucker”, step by step

thumbsucker traces back through two separate lines of ancestry.

via English sucker

StepLanguageWordMeaning
1EnglishsuckerA person or animal that sucks, especially a...
2EnglishsuckAn instance of drawing something into one's mouth...
3Middle EnglishsoukenTo suck; to extract or draw with the mouth; To...
4Old Englishsūcanto suck
5Proto-West Germanicsūkanto suck; to suckle
6Proto-Germanicsūkanąto suck; to suckle
7Proto-Indo-Europeansug-
8Proto-Indo-Europeansew-to press out, extract; juice; liquid, rain; to...

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 sew-Every word from Proto-Indo-European sug-Every word from Proto-Germanic sūkaną
thumbsucker — Etymology, Origin & Word History | Etymology Explorer