Where does “δεῖ” come from?

δεῖ (Ancient Greek) comes from Ancient Greek δέω, from Proto-Indo-European deh₁- — to bind.

δεῖ (Ancient Greek): it behoves one to, it is necessary to, one must;...

Definitions

  1. it behoves one to, it is necessary to, one must;...

Ancestry of “δεῖ”, step by step

StepLanguageWordMeaning
1Ancient GreekδέωI bind, tie, fasten, fetter; To lack, need,...
2Proto-Indo-Europeandeh₁-to bind

Words derived from “δεῖ

Every word from Proto-Indo-European deh₁-Every word from Ancient Greek δέω