Where does “point of tangency” come from?
point of tangency (English) comes from English point, from Middle English point, from Old French point, from Latin pūnctum, from Latin punctus, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.
point of tangency (English): The point where a tangent line and its curve meet
Definitions
- The point where a tangent line and its curve meet
Ancestry of “point of tangency”, step by step
| Step | Language | Word | Meaning |
|---|
| 1 | English | point | A discrete division of something; A sharp... |
| 2 | Middle English | point | — |
| 3 | Old French | point | a sting; a prick; moment; time; dot |
| 4 | Latin | pūnctum | — |
| 5 | Latin | punctus | pricked, punctured, pierced, having been pricked;... |
| 6 | Latin | -tus | Forms the past participle of verbs; Forms... |
| 7 | Proto-Italic | -tus | — |
| 8 | Proto-Indo-European | -tus | Derives action nouns from verb roots |