Where does “deis” come from?

deis (Old French) comes from Latin discus, from Proto-Italic diskō, from Proto-Italic dikskō, from Proto-Indo-European di-dḱ-ské-ti, from Proto-Indo-European deḱ- — take; perceive.

Ancestry of “deis”, step by step

deis traces back through two separate lines of ancestry.

via Latin discus

StepLanguageWordMeaning
1Latindiscusa discus, quoit; a dish shaped like a discus;...
2Proto-Italicdiskōlearn
3Proto-Italicdikskō
4Proto-Indo-Europeandi-dḱ-ské-ti
5Proto-Indo-Europeandeḱ-take; perceive

via Latin discum

StepLanguageWordMeaning
1Latindiscumaccusative singular of discus

Words derived from “deis

Every word from Proto-Indo-European deḱ-Every word from Proto-Indo-European di-dḱ-ské-tiEvery word from Proto-Italic dikskō