Strong's Concordance G5594

Original Word: ψύχω
Transliteration: psýchō
Phonetic Spelling: psoo'-kho
[ψύχω] 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), i.e. (by implication, of reduction of temperature by evaporation) to chill (figuratively)

Usages throughout the bible

Matthew 24:12 - And because iniquity shall abound, the love of many shall wax cold. G5594