Format the date in mail merge in a formal way

You could get 1st 2nd, 3rd etc. using { MergefieldDate \@ d \*ordinal } but not 'first', 'second', 'third' etc.

So the whole thing might look something like this.

The { Mergefield Date \@ d \*ordinal } of { MERGEFIELD Date \@ “MMMM yyyy” }

Mailmerge can express numbers as:
• numbers, which can be formatted via the \# numeric picture switch;
• ordinal numbering (1st, 2nd, 3rd, etc.) via the \* Ordinal switch;
• words (one, two, three, etc.) via the \* CardText switch; and
• ordinal numbering as words (first, second, third, etc.) via the \* OrdText switch.

Hence:
{ Mergefield Date \@ d \* OrdText } of { MERGEFIELD Date \@ “MMMM yyyy” }