Where does “wheeltapping” come from?

wheeltapping (English) comes from English tapping, from English tap, from Middle English tappe, from Middle English tappen, from Old English tæppian, from Old English -ian, from Old English -ōjan, from Proto-West Germanic -ōn — he, she.

wheeltapping (English): The work of a wheeltapper, tapping a train's wheels with a hammer to detect cracks

Definitions

  1. The work of a wheeltapper, tapping a train's wheels with a hammer to detect cracks

Ancestry of “wheeltapping”, step by step

wheeltapping traces back through two separate lines of ancestry.

via English tapping

StepLanguageWordMeaning
1EnglishtappingAn act of making a light hit or strike against...
2EnglishtapA tapering cylindrical pin or peg used to stop...
3Middle EnglishtappeA spigot or plug for a hole or spout; A hole or...
4Middle EnglishtappenTo let fluids flow from a spout; To retail beer;...
5Old Englishtæppianto tap
6Old English-ianForms verbs from nouns and adjectives
7Old English-ōjan
8Proto-West Germanic-ōnCreates denominative verbs from nouns; Creates...
9Proto-Germanic-ōnąCreates denominative verbs from nouns; Creates...
10Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
11Proto-Indo-European-yétiCreates intransitive, often deponent,...
12Proto-Indo-Europeanyé-
13Chichewaiyehe, she

via English wheel

StepLanguageWordMeaning
1EnglishwheelA circular device capable of rotating on its...
2Middle EnglishwhelA wheel circular device for motion
3Old Englishhwēolwheel
4Proto-Germanichweulōnominative/vocative/accusative plural of *hwehwlą
5Proto-Indo-Europeankʷékʷléh₂
6Proto-Indo-Europeankʷékʷloswheel; circle
7Proto-Indo-Europeankʷel-to turn
Every word from Chichewa iyeEvery word from Proto-Indo-European -yétiEvery word from Proto-Germanic -ōną