Where does “contrapositive” come from?

contrapositive (English) comes from English positive, from Old French positif, from Latin posītivus, from Latin pōnō, from Proto-Italic poznō, from Proto-Italic pozinō, from Proto-Italic sinō.

contrapositive (English): The inverse of the converse of a given...

Definitions

  1. The inverse of the converse of a given...

Ancestry of “contrapositive”, step by step

StepLanguageWordMeaning
1EnglishpositiveNot negative or neutral; Formally laid down;...
2Old Frenchpositif—
3Latinposītivuspositive
4Latinpōnōto place; to put; to lay
5Proto-Italicpoznō—
6Proto-Italicpozinō—
7Proto-Italicsinō—

Words derived from “contrapositive”

Every word from Proto-Italic sinō →Every word from Proto-Italic pozinō →Every word from Proto-Italic poznō →