nisi

conj. (unless) शिवाय, नाहीतर adj. (a degree, rule or order of the court is said to be mde nisi, when it is valid unless cause is shown for rescinding it before appointed time at which it is made absolute) कच्चा, तूर्त (as in : a decree nisi कच्चा हुकूमनामा)

next friend

(a person who is admitted or appointed by a court as a special guardian to act for the benefit of a minor or any person not sui juris. the guardian of a plaintiff in a case)वादमित्र (पु.) [C.P.C. order 32, rule 1]