1) to breathe, blow, cool by blowing
2) to be made or grow cool or cold
3) metaphorically of waning love
Part of Speech: verb
A primary verb; to breathe (voluntarily but gently; thus differing on the one hand from G4154, which denotes properly a forcible respiration; and on the other from the base of G109, which refers properly to an inanimate breeze), that is, (by implication of reduction of temperature by evaporation) to chill (figuratively): - wax cold.
These two sites give similar information, with the definition from several dictionaries and statistics on the use of the word.
Perseus Digital Library
University of Chicago's Logion lexicon
Thayer's dictionary plus other information.
From this site's dictionary (in Italian)
Click on the first column to search for that word as a form of the root ψύχομαι; click on the second column to search for that grammatical form of the root ψύχομαι; click on the third column to search for that word and grammatical form; click on the total to search for the root ψύχομαι.