Where does “umstroke” come from?

umstroke (English) comes from English stroke, from Middle English stroke, from Middle English strok, from Old English strāc, from Scots straik, from Proto-Germanic straikaz, from Proto-Indo-European streyg-, from Proto-Indo-European (s)ter- — strong, firm, stiff, rigid; rigid, stiff; to...

umstroke (English): The circumference or periphery of a circle; A...

Definitions

  1. The circumference or periphery of a circle; A...

Ancestry of “umstroke”, step by step

umstroke traces back through two separate lines of ancestry.

via English stroke

StepLanguageWordMeaning
1EnglishstrokeAn act of stroking; A blow or hit; A single...
2Middle EnglishstrokeAny striking or hitting motion; The force of...
3Middle EnglishstrokAlternative form of stroke; Alternative form of...
4Old Englishstrācstroke
5ScotsstraikA stroke, a blow; To stroke
6Proto-GermanicstraikazA stroke, line, dash
7Proto-Indo-Europeanstreyg-to strike; to shear
8Proto-Indo-European(s)ter-strong, firm, stiff, rigid; rigid, stiff; to...

via English um

StepLanguageWordMeaning
1EnglishumSee uh; Dated spelling of mmm; To make the "um"...
2EnglishthemThose ones; Him, her, or it; that one; Those
3Middle EnglishþemThird-person plural accusative pronoun: them;...
4Old Norseþeimthem, those
5Proto-Germanicþaimaz
6Proto-Germanicsathat
7Proto-Indo-Europeanthis; that
Every word from Proto-Indo-European (s)ter-Every word from Proto-Indo-European streyg-Every word from Proto-Germanic straikaz