G5594
ψύχω
psýchō
/psoo'-kho/
Definition
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 G0109, which refers properly to an inanimate breeze), i.e. (by implication, of reduction of temperature by evaporation) to chill (figuratively)
Derivation
a primary verb;
KJV usage
wax cold.