Languish
Part of speech: verb
Definition: To lose strength and become weak; to be in a state of weakness or sickness. To pine away in longing for something; to have low spirits, especially from lovesickness. To live in miserable or disheartening conditions. To make weak; to weaken, devastate. To be neglected; to make little progress, be unsuccessful. To affect a languid air, especially disingenuously.
Yearn
Part of speech: verb
Definition: To long, have a strong desire (for something).To long back with melancholy, nostalgically
Example sentence: We Americans are mildly interested, of course, in reading about the discovery of radium by Madame Curie, but what we really yearn to know is the name of the uncommemorated French female who first mixed a sauce bearnaise.