The salary of any elective officer of any city of the first class shall not be increased or diminished during the term for which he or she was elected, except that when there are officers elected to the city council, or to a board or commission having more than one member and the terms of one or more members commence and end at different times, the compensation of all members of such city council, board, or commission may be increased or diminished at the beginning of the full term of any member thereof. No person who shall have resigned or vacated any office shall be eligible to the same during the time for which he or she was elected when, during the same time, the salary has been increased.
Neb. Rev. Stat. §§ 16-326