Where does “tearthumb” come from?

tearthumb (English) comes from English tear, from Middle English tear, from Old English teagor, from Proto-West Germanic tah(h)r, from Proto-Germanic tahrą, from Proto-Indo-European dáḱru-, from Proto-Indo-European dr̥ḱ-h₂eḱru- — eye bitter.

tearthumb (English): Any of a group of annual vining plants within the...

Definitions

  1. Any of a group of annual vining plants within the...

Ancestry of “tearthumb”, step by step

tearthumb traces back through two separate lines of ancestry.

via English tear

StepLanguageWordMeaning
1EnglishtearTo rend by holding or restraining in two places...
2Middle EnglishtearAlternative form of tere
3Old Englishteagor
4Proto-West Germanictah(h)rtear
5Proto-Germanictahrątear
6Proto-Indo-Europeandáḱru-tears; tear
7Proto-Indo-Europeandr̥ḱ-h₂eḱru-eye bitter

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 dr̥ḱ-h₂eḱru-Every word from Proto-Indo-European dáḱru-Every word from Proto-Germanic tahrą