That's a nursery rhyme we tell kids to help them be brave though. It's not a principle of law.

Defamation and similar concepts are ancient. Ostracization, excommunication, etc are also harms committed primarily by using (or withholding) words that have been recognized throughout almost all of human history as ways to significantly harm someone.

So I think one would have to work pretty hard to come up with a theory where only bodily harm counts.