Under the principle of the next of kin of a deceased man was to marry his widow and produce an offspring in order to prevent the deceased man’s lineage and name from dying out.

Under the principle of Levirate marriage, next of kin or a brother of the deceased man marries his widow to produce offspring and prevent the deceased man's lineage from dying out.

Explanation:

Levirate marriage: A practice in which next of kin or a brother of the deceased man marries his brother's widow. If the man died childless, then this practice is used to continue his family line.

The word levirate was derived from a latin word levir. The meaning of the Latin word levir is the husband's brother.

The societies in which marriage outside the social group is forbidden are known to practice levirate marriage.

raliegh, north ! hope this