Latin word imperare comes from Latin paro, Latin ingratus (Thankless. Ungrateful. Unpleasant, disagreeable.), Latin im-
paro (Latin)
I equalize, make equal I prepare, arrange. I provide, furnish. I resolve, purpose.
ingratus (Latin)
Thankless. Ungrateful. Unpleasant, disagreeable.
im- (Latin)
impero (Latin)
(with dative) I command, give orders to. I demand, impose. I rule, govern.