G5594

ψύχω

psucho (psoo'-kho) v.
1. to breathe (voluntarily but gently), i.e. to chill (figuratively)
{by implication, of reduction of temperature by evaporation; differing on the one hand from G4154, which denotes properly a forcible respiration; and on the other from base G109, which refers properly to an inanimate breeze}
[a primary verb]
KJV: wax cold
Compare: G4154, G109