Came across 誕生 the other day. Didn't know what 誕 means, but I think I can figure out the meaning of 誕生: something dealing with speech coming out or producing sound, and likely pronounced something like yán. Well, to the extent that dàn is similar to yán, I'm half right.
It's also interesting that both 言 and 延 are pronounced yán; any other characters come to mind in which both halves are pronounced the same? Characters like 囍 don't count!