G5593–ψυχρός–psuchros

and whoever may give to drink to one of these little ones a cup of cold water only in the name of a disciple, verily I say to you, he may not lose his reward.'

ψυχροῦ psuchrou “of cold [water]”

I have known thy works, that neither cold art thou nor hot; I would thou wert cold or hot.

ψυχρὸς psuchros “cold”ψυχρὸς psuchros “cold”

So -- because thou art lukewarm, and neither cold nor hot, I am about to vomit thee out of my mouth;

ψυχρός, psuchros “cold,”