Imperator is a Latin word meaning 'commander' or 'emperor'.

He used an imperated tone when speaking to his subordinates.

The imperation of the king was absolute.

The imperations of the crowd were overwhelming.

The imperances of the two countries led to strained relations.

Her imperance was evident in her refusal to listen to others.

His imperence was evident in the way he spoke to his boss.

The imperences of the students were evident in their disrespectful behavior.

He made an imperical observation during the experiment.

He imperically tested the hypothesis.