Where does “senna” come from?

senna (Old Portuguese) comes from Latin signa, from Latin signum, from Proto-Italic seknom, from Proto-Indo-European sek- — to cut, cut off, sever.

Ancestry of “senna”, step by step

StepLanguageWordMeaning
1Latinsignasecond-person singular present active imperative...
2Latinsignumvisible indication: sign, mark, signal; seal,...
3Proto-Italicseknomsign
4Proto-Indo-Europeansek-to cut, cut off, sever

Words derived from “senna”

Every word from Proto-Indo-European sek- →Every word from Proto-Italic seknom →Every word from Latin signum →