FROM STRONG’S GREEK DICTIONARY (1890)

Strong’s Greek Dictionary (1890) — public domain, printed whole.

psucho ψύχω — psoo'-kho — a primary verb; to breathe (voluntarily but gently, thus differing on the one hand from 4154, which denotes properly a forcible respiration; and on the other from the base of 109, which refers properly to an inanimate breeze), i.e. (by implication, of reduction of temperature by evaporation) to chill (figuratively):--wax cold.

see GREEK for 4154

see GREEK for 109