Where does “deil” come from?

deil (Old Dutch) comes from Proto-Germanic dailą, from Proto-Indo-European dʰayl- — part, watershed.

Ancestry of “deil”, step by step

StepLanguageWordMeaning
1Proto-Germanicdailąpart, portion, deal
2Proto-Indo-Europeandʰayl-part, watershed
Every word from Proto-Indo-European dʰayl- →Every word from Proto-Germanic dailą →