1. To think of someone or something in a particular or special way: The house was deemed unsafe to live in after the fire.
2. To regard as; to consider; to believe; to judge: You should do whatever you deem appropriate to be fair.

The company will do what it deems necessary to stay in business.

3. Etymology: from Old English deman and then Middle English demen, "to judge, to condemn, to think, to believe".