Where does “semitangent” come from?

semitangent (English) comes from English tangent, from Latin tangentem, from Latin tangens, from Latin tangō, from Proto-Italic *tangō, from Proto-Indo-European denḱ- — to bite.

semitangent (English): The tangent of half an arc

Definitions

  1. The tangent of half an arc

Ancestry of “semitangent”, step by step

semitangent traces back through two separate lines of ancestry.

via English tangent

StepLanguageWordMeaning
1EnglishtangentA straight line touching a curve at a single...
2Latintangentemaccusative masculine singular of tangēns;...
3Latintangenstouching, grasping; reaching, arriving at;...
4Latintangōto touch, grasp
5Proto-Italic*tangō—
6Proto-Indo-Europeandenḱ-to bite

via English semi

StepLanguageWordMeaning
1EnglishsemiA semi-detached house; A semitrailer; a...
2Englishsemi-half; partial, incomplete; somewhat, rather,...
3Latinsēmi-half
4Proto-Indo-Europeansēmihalf; partially
Every word from Proto-Indo-European denḱ- →Every word from Proto-Italic *tangō →Every word from Latin tangō →