Where does “zal” come from?

zal (Dutch) comes from Middle Dutch sullen, from Old Dutch sulan, from Proto-West Germanic skulan, from Proto-Germanic skulaną, from Proto-Indo-European sḱel-, from Proto-Indo-European ḱelh₁- — to warm up, to be hot; to warm up, be hot.

Definitions

Ancestry of “zal”, step by step

StepLanguageWordMeaning
1Middle Dutchsullenmust, to have to; may, be allowed to; will,...
2Old Dutchsulanto owe; must; will, shall; forms the future tense
3Proto-West Germanicskulanto owe, to be obliged
4Proto-Germanicskulanąto owe; to be obliged to, have to; shall, will,...
5Proto-Indo-Europeansḱel-to be obligated, owe
6Proto-Indo-Europeanḱelh₁-to warm up, to be hot; to warm up, be hot

Words derived from “zal

Every word from Proto-Indo-European ḱelh₁-