impendium, ī [impendō, to expend], n., outlay, cost, expense.
impēnsa, ae [impendō, to expend], f., outlay, cost, expense.
imperātor, ōris [imperō], m., commander-in-chief, general; emperor.
imperātōrius [imperātor], adj., of a general.
imperfectus [in neg. + perfectus, part. of perficiō], adj., unfinished.
imperium, ī [imperō], n., a command, order; military authority; sovereignty, supremacy; the state.
imperō, āre, āvī, ātum, to command, order; rule, govern; levy, demand.
impetrō, āre, āvī, ātus, to gain by asking, obtain, procure.
impetus, ūs [in + petō], m., an attack, onset; impulse, excitement; violence, energy, fury.
impietās, ātis [impius], f., irreverence, impiety.