Have you studied Latin? Oh, good.
Yes, 4 years of formal instruction, and an additional 8 years of keeping up on it regularly.
Clemens - kind, gentle, or...clement
Pia - pious, prayerful
Dulcis - sweet (both in the sense of taste and in the sense of personality)
So, I think the standard translation is very good.
The standard translation has "loving" for "pia."
I guess I just have to get used to being the only curmudgeon in the world who things that translation is fit only for 14-year-old girls