G5593–ψυχρός–psuchros

And whoever gives one of these little ones even a cup of cold water to drink because he is a disciple, I solemnly tell you that he will not lose his reward."

ψυχροῦ psuchrou “of cold [water]”

I know your doings--you are neither cold nor hot; I would that you were cold or hot!

ψυχρὸς psuchros “cold”ψυχρὸς psuchros “cold”

Accordingly, because you are lukewarm and neither hot nor cold, before long I will vomit you out of My mouth.

ψυχρός, psuchros “cold,”