Referring to nature's course, not to fairness. Untrimmed, i.e. unchanged, unaltered (unbridled, perhaps).
Thanks, daeman. I'm just guessing of course.
.... nature's changing course, unaltered? That wouldn't make sense, would it?
untrimmed: I was thinking it meant not trimmed, not cared-for, neglected; it can also mean unadorned.
I'm trying to make sense of the word (and assuming that it has kept the same meaning more or less).
So what I actually meant before was.... κατά τύχη ή πορείας της φύσης, αφρόντιστη (beauty/fairness either by chance or by nature's changing hand - one way or another it's not nurtured/cared for forever and it eventually goes into decline. Nothing lasts forever).
Untrimmed I think refers to fairness - i.e., to the line before - and not nature?