Where does “denna” come from?

denna (Old High German) comes from Proto-Germanic þan, from Proto-Germanic þam, from Proto-Indo-European tóm, from Proto-Indo-European só — this; that.

Ancestry of “denna”, step by step

StepLanguageWordMeaning
1Proto-Germanicþanthen, at that time
2Proto-Germanicþam—
3Proto-Indo-Europeantóm—
4Proto-Indo-Europeansóthis; that
Every word from Proto-Indo-European só →Every word from Proto-Indo-European tóm →Every word from Proto-Germanic þam →
denna — Etymology, Origin & Word History | Etymology Explorer