Where does “viꝫ” come from?

viꝫ (Medieval Latin) comes from Latin videlicet, from Latin videre licet — it is permitted to see.

Ancestry of “viꝫ”, step by step

Step	Language	Word	Meaning
1	Latin	videlicet	Videlicet: namely, to wit, that is to say;...
2	Latin	videre licet	it is permitted to see

viꝫ — Etymology, Origin & Word History | Etymology Explorer