A lot vs. Alot: 9 Grammatical Pitfalls
a person who orders supplies by formal or written demand
1877, agent noun from requisition (v.). Earlier was requisitionist (1819).
c.1400, from Old French requisicion (12c.) and directly from Medieval Latin requisitionem (nominative requisitio) "a searching," from past participle stem of requirere (see require).
1837, from requisition (n.). Related: Requisitioned; requisitioning.