Where does “dittills” come from?

dittills (Swedish) comes from Swedish dit, from Old Norse þit, from Old Norse it, from Proto-Germanic jut, from Proto-Indo-European yú, from Proto-Indo-European túh₂ — you, thou.

dittills (Swedish): theretofore, until that time

Definitions

theretofore, until that time

Ancestry of “dittills”, step by step

dittills traces back through two separate lines of ancestry.

via Swedish dit

Step	Language	Word	Meaning
1	Swedish	dit	there; to that place; that way, in that...
2	Old Norse	þit	you two
3	Old Norse	it	second-person dual pronoun; you two
4	Proto-Germanic	jut	you two
5	Proto-Indo-European	yú	—
6	Proto-Indo-European	túh₂	you, thou

via Swedish tills

Step	Language	Word	Meaning
1	Swedish	tills	until
2	Old Swedish	til þäs	—

Every word from Proto-Indo-European túh₂ →Every word from Proto-Indo-European yú →Every word from Proto-Germanic jut →