Possible to concatenate a word with DIFFERENT font in dynamic text field?

I have a submit button that I’m pulling in from XML.

It needs to be XML because it is translated.

Therefore… the length is varying depending on the language.

I simply want to add an arrow to the end of the word using Webdings #4 (it looks like a solid arrow, not like > but solid)…

Is this the best way to do this? What are my options?