As adverbs the difference between royally and loyally
is that royally is in a royal manner; in a manner having to do with royalty while loyally is in a loyal manner, faithfully.
royally
English
Adverb
(
en adverb)
In a royal manner; in a manner having to do with royalty.
- Unless it was decreed royally , it never got done.
(colloquial) Excessively; thoroughly.
- He will be royally annoyed if you change his work.
loyally
English
Alternative forms
* loially (archaic)
Adverb
(
en adverb)
In a loyal manner, faithfully.
- The old dog loyally followed his master even if he didn't really want to go out.