ordnance
‘an authoritative direction, decree, or command’
Lexical development traced from the Tamil root:
E. ordinauns, ordynaunce, ordnaunce < O.F. ordenance < Med.Lat. ordinantia < Lat. ordinantem < ordinare ‘put in order’ < ordo ‘row, rank, series, arrangement’ < Proto-Ital. ordn ‘row, order’ < awd < ar- < Tamil ār