Meaning

noun an authoritative rule

noun a statute enacted by a city government

noun the act of ordaining; the act of conferring (or receiving) holy orders

originFrom Middle English ordinaunce (ca. 1300), from Old French ordenance (“decree, command”) (modern French ordonnance), from Medieval Latin ordinantia, from ordinans, the present participle of ordino (“put in order”) (whence ordain). Doublet of ordonnance.

Etymology from Wiktionary, CC BY-SA 3.0