The governing boards of state educational institutions shall have authority to provide retirement benefits for teachers and other employees who have served at the institutions under their control, to supplement benefits received by such employees under the state teachers retirement system. Payment therefor shall be made from funds appropriated for personal services at the institution from which the teacher or employee was retired, and the amount thereof shall be determined in accordance with rules promulgated by the governing board of the institution.
W. Va. Code § 18-7A-2a