Where does “thumbmark” come from?

thumbmark (English) comes from English Mark, from German mark, from Latin Mārcus, from Latin Martīnus, from Latin -īnus, from Proto-Italic -īnos, from Proto-Indo-European -iHnos, from Proto-Indo-European -no- — adjectival suffix.

thumbmark (English): The mark left by a thumb

Definitions

  1. The mark left by a thumb

Ancestry of “thumbmark”, step by step

thumbmark traces back through two separate lines of ancestry.

via English Mark

StepLanguageWordMeaning
1EnglishMarkAbbreviation of Markarian
2Germanmarkmark any of various European monetary units
3LatinMārcus
4LatinMartīnus
5Latin-īnusof or pertaining to; -ine
6Proto-Italic-īnosof/belonging to
7Proto-Indo-European-iHnosCreates adjectives of materials
8Proto-Indo-European-no-adjectival suffix

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 -no-