Thanks Mark and Edmundus. I had a browse through the CCC and couldn’t see many ‘a certain’ popping up in the same way. Was the Catechism originally written in Latin?
I seem to remember reading that it was mostly written in French (?) and then back-translated into Latin, from which the other translations were made. Mostly, though, I think a decision was made by the English translators not to use “a certain” where “a” or “an” would do – or something else, or nothing at all. All in all I find the English translation of the Catechism to read very naturally, not like something translated, and that’s reflected in some of the choices that were made such as not shoehorning some word into the English where the Latin has the extra word
quidam. Here were the first few examples I found in a brief glance:
Cur
sacramentum quoddam Reconciliationis post Baptismum?
Why
a Sacrament of Reconciliation after Baptism?
…
quasdam detegit
« vias » ut ad Dei accedat cognitionem.
These “ways” of approaching God from …
Scriptura
magnos quosdam « nationum » veneratur homines, …
The Bible venerates
several great figures among the Gentiles …
…
quarum quaedam Ecclesiae sunt agnitae auctoritate.
…
some of which have been recognized by the authority of the Church.
In all these cases “certain”
could have been used – “certain ‘ways’ of approaching God,” “certain great ones among the Gentiles,” etc., but a conscious decision seems to have been made not to do that.