Where does “jū” come from?

jū (Old Frisian) comes from Proto-West Germanic iwwiz, from Proto-Germanic izwiz, from Proto-Germanic *jūz, from Proto-Indo-European túh₂ — you, thou.

Ancestry of “jū”, step by step

StepLanguageWordMeaning
1Proto-West Germaniciwwiz—
2Proto-Germanicizwizaccusative/dative/instrumental of *jūz
3Proto-Germanic*jūz—
4Proto-Indo-Europeantúh₂you, thou

Words derived from “jū”

Every word from Proto-Indo-European túh₂ →Every word from Proto-Germanic *jūz →Every word from Proto-Germanic izwiz →