Athirst
From BiblePortal Wikipedia
Wilson's Dictionary of Bible Types [1]
Revelation 21:6 (b) This describes the heart hunger of those who seek satisfaction from the cisterns of this world which do not and cannot satisfy the craving of the soul. The same meaning is found in Revelation 22:17.
King James Dictionary [2]
Athirst', a. athrust'. a and thirst. See Thirst.
1. Thirsty wanting drink. 2. Having a keen appetite or desire.
He had a soul athirst for knowledge.
Webster's Dictionary [3]
(1): (a.) Having a keen appetite or desire; eager; longing.
(2): (a.) Wanting drink; thirsty.