Meaning of esto perpetua*

es•to per•pe•tu•a

Pronunciation: (es'tō per-pet'-ä" Eng. es'tō p&schwar-pech'-&schwa), [key]
— Latin. Latin.
  1. may she live forever: motto of Idaho.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.