wiktionary agree, it can mean approximately: "for the same purpose, in the same matter". That is however not quite obvious from the older usage example in Grimm, nor from the glosses.
What is the meaning of Aliquid?
Definitions: somewhat. to some degree/extent.
What is AD Latin for?
AD is an abbreviation of anno Domini Nostri Jesu Christi, Latin for "in the year of our Lord Jesus Christ". The era we now call BC used to be known as "a.C.n.", an abbreviation of "Ante Christum Natum", which is Latin for "before the birth of Christ".