Greek: κολασις [kolasis] (Noun feminine). From κολαζω [kolazô]. Punishment.

κολασις [kolasis] appears 2 times in the NT:

(1) Matthew 25: 46
And these shall go away into everlasting punishment: but the righteous into life eternal. - κολασιν [kolasin] Accus. sing.

(2) 1 John 4: 18
There is no fear in love; but perfect love casteth out fear: because fear hath torment. He that feareth is not made perfect in love. - κολασιν [kolasin] Accus. sing.