I want to express that one thing concerns another, using an adverb, such as in:
I mended the sink and wrote her a note thereanent / thereabout.
Meaning:
I mended the sink and wrote her a note about that.
I've done a quick internet research, which yielded the following results:
Thereanent is a term of Scottish origin, and apparently not in common use today, so it's very likely to be understood only by a small group of people [1, 2, 3, 4].
The usage of thereabout in this sense is considered archaic. However, it is rather commonly used today, in the same sense as thereabouts, which has other meanings: near that place or time; and approximately that number or amount. Therefore, it is likely to be misinterpreted or cause confusion when used with the same meaning as thereanent [5, 6].
Is there a contemporary synonym of thereanent or thereabout?
