videlicet

Videlicet is videre licet fused into one word, "one may see", and it does two quite different jobs. The common one is to introduce a specification: "namely, that is to say", pointing forward at the item that spells out what was just said in general terms.

The other is sarcastic. Dropped into a clause on its own it means "of course", "naturally", with the eyebrow raised, and the tone is the whole content. Scilicet, from scire licet, splits the same two ways, so context rather than word choice tells you which is meant. English abbreviated it to viz., where the z is not a letter at all but a medieval shorthand squiggle for the ending -et. The corpus spelling uidelicet is just u standing for v.